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INCH-POUND

MIL-DTL-24308G

w/AMENDMENT 2

1 August 2012

SUPERSEDING

MIL-DTL-24308G

w/AMENDMENT 1

25 January 2011

DETAIL SPECIFICATION

CONNECTORS, ELECTRIC, RECTANGULAR, NONENVIRONMENTAL,

MINIATURE, POLARIZED SHELL, RACK AND PANEL,

GENERAL SPECIFICATION FOR

This specification is approved for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This specification covers the requirements for nonenvironmental, polarized shell, miniature, rack and

panel connectors having pin and socket, crimp (removable), solder (nonremovable), or insulation displacement

(nonremovable) contacts with rigid or float mounting, designed for -55°C to +125°C operating temperature range.

1.2 Part or Identifying Number (PIN). The PIN is to consist of the letter "M", the basic number of the specification

sheet, an assigned dash number and a suffix letter for the finish if applicable (see 3.1):

M

24308/1

-1

F

Military designation Specification

sheet number

Dash number

Finish (see note 1)

For class G:

A = Pure electrodeposited aluminum.

F = Cadmium (see note 2).

K = Zinc nickel.

T = Nickel Fluorocarbon Polymer.

Z = Zinc (see note 3).

For class N:

A = Pure electrodeposited aluminum.

F = Cadmium (see note 2).

K = Zinc nickel

T = Nickel Fluorocarbon Polymer.

P = Passivated stainless steel.

Z = Zinc (see note 3).

For class H:

Class H connectors have a tin finish, no suffix required

For class M:

Class M connectors have a gold finish,

no suffix is required.

For classes D and K:

Class D and class K connectors have a nickel.

finish, no suffix is required.

NOTES:

1. Prior to 1 July 1987, a suffix for finish was not included in the PIN.

2. A “F” suffix PIN is to be used for connectors with a cadmium finish and made after 1 July 1987.

3. Manufactures and their selling agents and distributors may ship stock of “No Suffix” zinc finished connectors

no more than 6 months from the date of this document.

Comments, suggestions, or questions on this document should be addressed to DLA Land and Maritime,

ATTN: VAI, P.O. Box 3990, Columbus, OH 43218-3990 or email RectangularConnector@dla.mil. Since

contact information can change, you may want to verify the currency of this address information using the

ASSIST Online database at https://assist.dla.mil/.

AMSC N/A

FSC 5935

MIL-DTL-24308G

w/AMENDMENT 2

1.3 Classification.

1.3.1 Classes. Connectors covered by this specification are of the following classes.

G - General purpose connectors, see 3.3.6.1 (see note).

N - Nonmagnetic connectors, see 3.3.6.1 (see note).

H - Hermetic connectors.

M - Same as N except, these connectors are intended for space missions.

D - Same as G except, these connectors are intended for space missions.

K - Same as H except, these connectors are intended for space missions.

1.3.2 Style of termination. Connectors covered by this specification are of the following terminal styles:

Crimp

Solder

Insulation displacement contact (IDC)

Printed wiring board (PWB)

1.3.3 Types. Connectors covered by this specification are of the following types:

I

- Standard density (size 20 contacts).

II - High density (size 22D contacts).

III - Standard density (size 20 IDC contacts)

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This

section does not include documents cited in other sections of this specification or recommended for additional

information or as examples. While every effort has been made to ensure the completeness of this list, document users

are cautioned that they must meet all specified requirements documents cited in sections 3, 4, or 5 of this

specification, whether or not they are listed.

2.2 Government documents.

2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a

part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are

those cited in the solicitation or contract.

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-C-22520/2

- Crimping tools, Terminal, Hand, Wire Termination for wire barrel sizes 20 through 28

MIL-DTL-24308/23 - Connectors, Electric, Rectangular, Nonenvironmental, Miniature, Polarized Shell,

Rack and Panel, Socket Contacts, Printed Wiring Board Termination Types

MIL-DTL-24308/24 - Connectors, Electric, Rectangular, Nonenvironmental, Miniature, Polarized Shell,

Rack and Panel, Pin Contacts, Printed Wiring Board Termination Types

MIL-DTL-83488

MIL-M-24519

- Coating, Aluminum, High Purity

- Molding Plastics, Electrical Thermoplastic

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MIL-DTL-24308G

w/AMENDMENT 2

DEPARTMENT OF DEFENSE STANDARDS

MIL-STD-202

MIL-STD-790

- Test Methods for Electronic and Electrical Component Parts

- Standard Practice for Established Reliability and High Reliability Qualified Products List

(QPL) Systems for Electrical, Electronic, and Fiber Optic Parts Specifications

- Marking of Electrical and Electronic Parts

MIL-STD-1285

(Copies of these documents are available online at https://assist.dla.mil/quicksearch/ or from the Standardization

Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094)

2.2.2 Other Government documents drawings and publications. The following other Government documents,

drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the

issues are those cited in the solicitation or contract.

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION (NASA)

JSC SP-R-0022 - Vacuum Stability Requirements of Polymeric Material for Spacecraft Applications.

(Copies of these documents are available online at www.nasa.gov/centers/johnson/home/ or the NASA Johnson

Space Center 2101 NASA Parkway Houston, Texas 77058.)

2.3 Non-Government publications. The following documents form a part of this document to the extent specified

herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract

(see 6.2).

ASTM INTERNATIONAL

ASTM A342/A342M

ASTM B488

ASTM B545

ASTM B633

ASTM B733

ASTM B841

ASTM E595

- Test Method for Permeability of Feebly Magnetic Materials

- Electrodeposited Coatings of Gold for Engineering Uses

- Electrodeposited Coatings of Tin, Standard Specification For

- Zinc on Iron and Steel, Electrodeposited Coatings Of

- Autocatalytic Electroless Nickel-Phosphorus Coatings on Metal

- Standard Specification for Electrodeposited of Zinc Nickel Alloy Deposits

- Total Mass Loss and Collected Volatile Material from Outgassing in a Vacuum

- Environment, Condensable, Standard Test Method For

ASTM D4067

ASTM D5927

ASTM D5948

- Standard Classification System for Reinforced and Filled Poly(Phenylene

Sulfide) (PPS) Injection Molding and Extrusion Materials Using ASTM Methods

- Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO

Test Methods

- Molding Compounds, Thermosetting, Standard Specification For

(Copies of these documents are available online at http://www.astm.org or from the ASTM International, P.O.

Box C700, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.)

ELECTRONIC INDUSTRIES ASSOCIATION

EIA-364

EIA-364-02

EIA-364-05

- Electrical Connector/Socket Test Procedures Including Environmental Classifications

- Air Leakage Test Procedure for Electrical Connectors

- Contact Insertion, Release and Removal Force Test Procedure for

Electrical Connectors

EIA-364-06

EIA-364-09

EIA-364-10

- Contact Resistance Test Procedure for Electrical Connectors

- Durability Test Procedure for Electrical Connectors and Contacts

- Fluid Immersion Test Procedure for Electrical Connectors and Sockets

EIA/ECA-364-13 - Mating and Unmating Forces Test Procedure for Electrical Connectors and Sockets

EIA-364-20

- Withstanding Voltage Test Procedure for Electrical Connectors, Sockets and Coaxial

Contacts

EIA/ECA-364-21 - Insulation Resistance Test Procedure for Electrical Connectors, Sockets, and Coaxial

Contacts

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MIL-DTL-24308G

w/AMENDMENT 2

EIA-364-24

EIA-364-25

- Maintenance Aging Test Procedure for Electrical Connectors

- Probe Damage Test Procedure for Electrical Connectors

EIA/ECA-364-26 - Salt Spray Test Procedure for Electrical Connectors, Contacts and Sockets

EIA-364-27

EIA-364-28

- Mechanical Shock (Specified Pulse) Test Procedure for Electrical Connectors

- Vibration Test Procedure for Electrical Connectors and Sockets

EIA/ECA-364-29 - Contact Retention Test Procedure for Electrical Connectors

EIA-364-31

EIA-364-32

- Humidity Test Procedure for Electrical Connectors and Sockets

- Thermal Shock (Temperature Cycling) Test Procedure for Electrical Connectors and

Sockets

EIA-364-35

EIA-364-37

- Insert Retention Test Procedure for Electrical Connectors

- Contact Engagement and Separation Force Test Procedure for Electrical Connectors

(Copies of these documents are available online at http://www.eciaonline.org or from the Electronic

Components Industry Association, 1111Alderman Drive, Suite 400, Alpharetta, GA 30005-4175.)

TECHAMERICA

EIA-557- Statistical Process Control Systems

(Copies of these documents are available online at http://www.techamerica.org or from

TechAmerica, 601 Pennsylvania Avenue, NW, North Building, Suite 600, Washington, DC 20004

IPC - ASSOCIATION CONNECTING ELECTRONICS INDUSTRIES

J-STD-006 - Requirements for Electronic Grade Solder Alloys, Fluxed and Non Fluxed Solid Solders for

Electronic soldering applications

(Copies of these documents are available online at http://www.ipc.org or from the IPC - Association Connecting

Electronics Industries, 3000 Lakeside Drive, Suite 309 S, Bannockburn, IL 60015-1249.)

INTERNATIONAL ORGANIZATION FOR STANDARDS (ISO)

ISO 10012 - Measurement management systems – Requirements for measurement processes and

measuring equipment

(Copies of these documents are available online at http://www.ansi.org or from the ANSI Customer Service

Department, 25 W 43^rdStreet, 4^thfloor, New York, NY 10036.)

NCSL INTERNATIONAL

NCSL Z540.3 - Requirements for the Calibration of Measuring and Test Equipment

(Copies of these documents are available online at http://www.ncsli.org or from NCSL International 2995 Wilderness

Place, Suite 107 Boulder, Colorado 80301-5404)

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA)

NEMA HP 3 - Electrical and Electronic PTFE (Polytetrafluoroethylene) Insulated High Temperature Hook

Up Wire; Types ET (250 Volts), E (600 Volts), and EE (1000 Volts)

(Copies of these documents are available online at http://www.nema.org or from the National Electrical

Manufacturer’s Association, 1300 North 17^thStreet, Suite 1847, Rosslyn VA 22209.)

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MIL-DTL-24308G

w/AMENDMENT 2

SOCIETY OF AUTOMOTIVE ENGINEERS, INC.

SAE AMS2404

SAE AMS2700

- Plating, Electroless Nickel

- Passivation of corrosion resistant steel

SAE AMS-QQ-N-290 - Nickel Plating (Electrodeposited)

SAE AMS-QQ-P-416 - Plating, Cadmium (Electrodeposited)

SAE AMS-P-81728

- Plating, Tin-Lead (Electrodeposited)

(Copies of these documents are available online at http://www.sae.org or from SAE International,

400 Commonwealth Drive, Warrandale, PA 15096-0001, and Tel: 877-606-7323 [inside USA and Canada] or

724-776-4970 [outside USA], email at CustomerService@sae.org.)

2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the

text of this document and the references cited herein (except for related specification sheets), the text of this document

takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific

exemption has been obtained.

3. REQUIREMENTS

3.1 Specification sheets. The individual item requirements shall be as specified herein and in accordance with the

applicable specification sheet. In the event of any conflict between the requirements of this specification and the

specification sheet, the latter shall govern.

3.2 Qualification. Connector assemblies furnished under this specification shall be products that are authorized by

the qualifying activity for listing on the applicable qualified products list before contract award (see 4.3 and 6.3).

3.2.1 Quality.

3.2.1.1 Statistical process control (SPC). The contractor shall implement and use statistical process control

techniques in the manufacturing process for parts covered by this specification. The SPC program shall be developed

and maintained in accordance with EIA-557. Where SPC cannot be utilized because of non-continuous production

requirements, a lot sampling plan for inspection in accordance with table XIII with c = 0 can be utilized. The SPC and

c = 0 programs shall be documented and maintained as part of the overall reliability assurance program in accordance

with EIA-557 and MIL-STD-790. Evidence of such compliance shall be verified by the qualifying activity of this

specification as a prerequisite for qualification.

3.3 Materials. Materials shall be as identified herein. However, when a definite material is not specified, a material

shall be used which will enable the connectors to meet all requirements of this specification. Acceptance or approval

of any constituent material shall not be construed as a guarantee for acceptance of the finished product.

3.3.1 Interface materials, platings and processes. Interface materials, platings, and processes have been

established to provide assurances that connectors manufactured to this specification will properly interface to similar

industry standard or government specified connector systems without problems of electrochemical incompatibility or

excessive interface surface wear. The manufacturers of connectors supplied to this specification may be allowed to

use alternate recognized industry standard materials, platings, and processes from those identified in 3.3. Alternate

materials, platings and processes used must be coordinated with the qualifying activity as part of the qualification

process. Use of alternates to those referenced guidance items by the supplier must not result in inferior short or long

term performance or reliability of supplied connectors as compared with connectors manufactured using the

referenced materials, platings, or processes. Short or long term failures or reliability problems due to use of these

alternates shall be the responsibility of the supplier.

3.3.2 Dissimilar metals. When dissimilar metals are employed in intimate contact with each other, protection

against electrolytic corrosion shall be provided (see 3.3.1).

3.3.3 Nonmagnetic materials (classes M and N connectors). All parts used in classes M and N connectors shall be

made from materials which are classed as nonmagnetic (see 3.5.1).

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MIL-DTL-24308G

w/AMENDMENT 2

3.3.4 Contact materials. Classes D, G, M, and N contact bodies shall be made of suitably conductive copper based

alloys. Classes H and K contacts may be ferrous alloy material. All contacts shall be suitably protected from

corrosion. When contacts are in-process plated in strip form, the absence of plating in the separation area is

acceptable, provided the area is nonfunctional and any corrosion products formed as a result of salt spray testing

(4.5.19) do not appear in the contact mating or termination areas.

3.3.4.1 Accessory members. Contact accessory members such as hoods, pressure members and retaining

devices shall be made of corrosion resistant material or shall be suitably treated to resist corrosion.

3.3.4.2 Contact finish (solder contact). The finish on contact bodies shall be gold applied either overall or localized

for class G, (see 6.5). The finish on contact bodies for classes D and M shall be gold plated applied overall. The finish

on contact bodies for classes H and K shall be gold plated.

3.3.4.2.1 Overall finish. Contact bodies shall be overall gold plated in accordance with ASTM B488, type II, code C,

class 1.27, over a suitable underplate (see 6.5). Silver shall not be used as an underplate. Nickel shall not be used as

an underplate on classes M and N. The finish on contact bodies of class H and K connectors shall be gold plated in

accordance with ASTM B488, type II, code C, class 1.27. Preliminary plating of another metal is permissible.

3.3.4.2.2 Localized finish. Contact bodies shall be overall nickel plated in accordance with SAE AMS-QQ-N-290,

except plating thickness shall be 30 to 150 microinches thick (see 6.5). Mechanical operations may be performed after

application of plating.

3.3.4.2.2.1 Contact mating area. The contact mating area as shown on figure 1 shall be gold plated in accordance

with ASTM B488, type II, code C, class 1.27, over nickel plating (see 3.3.4.2.2).

3.3.4.2.2.2 Terminations. Terminations shall be plated as follows:

a. Solder cups: 100 microinches minimum tin-lead plated in accordance with SAE AMS-P-81728, 50 to 95

percent tin.

b. Insulation displacement: 100 microinches minimum tin-lead plated in accordance with SAE AMS-P-81728, 50

to 95 percent tin.

c. Printed wiring tails: Dimension M in accordance with MIL-DTL-24308/23 and MIL-DTL-24308/24, 100

microinches minimum tin-lead plated in accordance with SAE AMS-P-81728.

d. Solder dipping is permitted, providing it meets procedures and requirements of MIL-STD-202, method 208.

3.3.5 Dielectric materials.

3.3.5.1 Insert. Insert material type SDG-F or GDI-30F in accordance with ASTM D5948, or TPES013G30, TPES023G30

or TPES102G30 in accordance with ASTM D5927, or type GPT-30F, GET-30F, GCT-30F or GLCP-30F or GLCP-50F in

accordance with or MIL-M-24519 or PPS000G40A63463EA220ED037EE030EF125EG100EH150FL310Y11 in accordance

with ASTM D4067, for classes D, G, M, and N connectors. Insert dielectric materials for classes H and K shall be glass.

3.3.6 Metal components. Metal components shall be of high grade corrosion resistant material or a material treated

to resist corrosion, which will allow the complete connector assembly to meet the requirements of this specification.

3.3.6.1 Finish. (Class G and N), Shells shall be cadmium plated in accordance with type II, class 2 of

SAE AMS-QQ-P-416 or zinc plated in accordance with ASTM B633. A preliminary plating of another metal is

permissible. The resulting finish shall be electrically conductive, and shall be of a golden color to ensure that the

chromate finish has been properly applied or pure electrodeposited aluminum non-reflective in accordance with

MIL-DTL-83488 Corrosion-resistant steel parts including shells shall be passivated in accordance with

SAE AMS2700, types 2, 6, 7 or 8 and need not be overplated. (Class G only), zinc nickel alloy in accordance with

ASTM B841, non-reflective black an underplate is optional or Nickel Fluorocarbon Polymer non-reflective an

underplate is optional.

3.3.6.2 Finish for class H connectors. Unless otherwise specified, all metal parts for class H connectors shall be tin

plated in accordance with ASTM B545. Preliminary plating of another metal is permissible. Tin shall contain a

minimum of 3% lead to prevent tin whiskers.

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MIL-DTL-24308G

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3.3.6.3 Finish for classes D, K, and M connectors. All metal parts for classes D and K connectors shall be

Electroless Nickel in accordance with SAE AMS2404, class 3 or 4, .0005 inch minimum thickness or electrically

conductive nickel-phosphorus conforming to ASTM B733, class 1 or 2, type III, .0005 inch minimum thickness. The

finish shall be dull. Use of a suitable underplate is permissible. For class M, the finish shall be gold in accordance

with ASTM B488 grade C, class 1.27 over a suitable underplate (see 6.5). A silver underplate shall not be used.

3.3.7 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally

preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the

operational and maintenance requirements and promotes economically advantageous life cycle costs.

3.3.8 Pure tin. The use of pure tin is prohibited. Tin content used in connector materials shall not exceed 97

percent, and an alloy material shall be chosen to inhibit the growth of tin whiskers (see 6.7).

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MIL-DTL-24308G

w/AMENDMENT 2

Inches

.0001

.020

mm

0.0025

0.51

.0410

.100

1.041

2.54

.139

3.53

.150

3.81

.188

4.78

FIGURE 1. Gold thickness areas.

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MIL-DTL-24308G

w/AMENDMENT 2

NOTES:

1. Overall finish: Measure gold thickness in zone A or B, as applicable.

2. Localized finish: Apply gold to the inside and outside diameter of the contact in area X or Y. Measure gold

thickness on outside diameter of the contact at point B or C, as applicable.

3. On socket contacts with integral pressure members, area X (zone of tangency) extends from the tip of the

contact to .020 inch beyond the point of tangency, (point C) on the inside and outside diameter of the contact.

4. Dimensions are in inches.

5. Metric equivalents are given for information only.

FIGURE 1. Gold thickness areas – Continued.

3.4 Interface and physical dimensions. Connectors shall be of the physical dimensions specified (see 3.1).

Connectors shall be so designed that neither the pins nor the sockets will be damaged during normal mating of

counterpart connectors.

3.4.1 Contact interface design. Contacts interface design shall be as specified on individual standards or military

specification sheets (see 3.1).

3.4.1.1 Solder contacts. Solder contacts shall be nonremovable from the insert, shall have eyelet or solder cup

terminals as specified (see 3.1) and shall be in accordance with MIL-DTL-24308, Appendix B. Solder cups shall be

designed such that during soldering no components will be damaged and no liquid solder shall escape.

3.4.1.2 Crimp contacts. Crimp contacts shall be as follows:

Connector density

Contact size

Contact Part or Identifying Number (PIN)

High

Standard

22D socket

22D pin

20 pin

M39029/57-354

M39029/58-360

M39029/64-369

M39029/63-368

20 socket

3.4.1.2.1 Contact insertion and removal tools. Crimp removable connectors shall be designed for contact insertion

and removal with the applicable military tools as follow:

Contact

size

Tool PIN

M81969/14-01 with plastic tips

M81969/1-04 with metal tips

M81969/39-01 with plastic tips

M81969/1-02 with metal tips

22D

20

3.4.1.3 Classes H and K contacts. Classes H and K contacts are to be permanently fused in place and shall have

eyelet or solder cup terminals, as specified (see 3.1), and shall be in accordance with Appendix B.

3.4.1.4 Insulation displacement contacts. Insulation displacement contacts shall be nonremovable from the insert

and shall be as specified (see 3.1).

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MIL-DTL-24308G

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3.4.2 Insert design and construction. Inserts shall be designed with suitable sections and radii such that they will

not readily chip, crack, or break in assembly or in normal service. Inserts shall be molded or bonded with a bond

barrier between all adjacent contacts and outside edge and of one-piece construction, except for IDC. Pin entry

openings on socket insert faces shall be as small as practicable. Socket inserts shall provide adequate protection

against a pin contacting a socket before the mating pair of connectors has been polarized. The inserts shall be so

designed that the inserts cannot be removed from the shells. The contact retaining system shall be free of foreign

material, adhesive, or any obstruction that would prevent smooth contact insertion and positive retention. The contact

retention system for removable crimp contact connectors shall be a metal retention clip or other contact retention

method, which will enable the contacts to meet the contact retention requirements specified in 3.5.5. All contact

retention systems shall utilize a common contact insertion/removal tool, (see 3.3.1).

3.4.2.1 Insert arrangement. The insert arrangement shall be as specified by the connector PIN (see 3.1).

3.4.2.2 Contact alignment and stability. With all contacts in place, the alignment of pin and socket contacts shall

always permit engagement irrespective of buildup of allowable tolerances on hole locations, distortion of contacts due

to crimping, and insert location in the shell.

3.4.3 Shell design. The shell shall be designed to positively retain the insert and shall be constructed so that the

insert cannot be removed.

3.4.3.1 Shell polarization. Polarization shall be accomplished by a keystone shape shell design with polarization

accomplished before engagement of the pins and sockets.

3.4.3.2 Mounting. Connectors shall be provided with means to fasten the shell securely to a mounting surface.

Classes H and K connectors shall be provided with solder mounting provisions, or with provisions for external

mounting hardware (see 3.1).

3.4.4 Interchangeability. All connectors and accessories having the same military PIN shall be completely

interchangeable with each other with respect to installation (physical) and performance (function) as specified herein.

Solder and crimp contact connectors shall be intermatable (see 3.1).

3.4.5 Mated spacing. Connectors shall meet applicable performance requirements when mated within the spacing

shown on figure 2.

PLUG

SHELL SIZES

1 & 2 .265 ±.015

SHELL SIZES

3, 4, 5, 6 .256 ±.015

SOCKET

RECEPTACLE

FIGURE 2. Mated spacing.

3.5 Performance. Connectors shall be designed to meet the requirements specified herein.

3.5.1 Magnetic permeability (classes M and N). The relative permeability of classes M and N connectors shall not

exceed 2 µ when measured as specified in 4.5.3.

3.5.2 Maintenance aging (crimp type). All crimp-contact connectors shall be capable of conforming to the

requirements of 3.5.3 and 3.5.4 after maintenance aging of 4.5.4.

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3.5.3 Contact insertion and removal forces. The axial forces required to insert and remove removable contacts

shall conform to the applicable requirements in table I when tested as specified in 4.5.5.

TABLE I. Contact insertion and removal forces (pounds maximum).

Contact size

20

4

22D

4

Insertion

Removal

3.5.4 Mating and unmating force. The force for mating and unmating of counterpart connectors shall meet the

requirements in table II. The connectors used in this test shall have the complete complement of contacts. Testing

shall be as specified in 4.5.6.

TABLE II. Mating and unmating forces (pounds).

Shell

size

Unmating

Mating

Minimum

Class

Maximum

Class

Maximum

Class

G, D, M,

H, K

G, D, M,

H, K

G, D, M, N

H, K

N

1

2

3

4

5

6

0.75

1.00

1.75

2.50

3.25

4.50

1.50

2.00

3.25

4.50

5.50

----

6.0

7.00

13.00

21.25

31.25

42.25

-----

10.0

17.0

28.0

39.0

49.0

65.0

7.25

13.00

21.25

31.25

42.25

-----

10.0

17.0

24.0

30.0

39.0

3.5.5 Contact retention. Contacts for classes G, D, M, and N connectors shall be retained in their inserts by a

9-pound (minimum) force. The axial displacement of contacts shall not exceed .012 inch (0.30 mm) while under load

(see 4.5.7).

3.5.6 Dielectric withstanding voltage. Unmated connectors shall show no evidence of breakdown or flashover when

subjected to the test voltages and altitudes specified in tables III and IV. Corona shall not be considered as

breakdown. Testing shall be as specified in 4.5.8.

TABLE III. Type I and II test voltage (Volts rms, 60 Hz). 1/

Humidity conditioned

(see 4.5.15)

All other

Conditions

Altitude

Classes

G, D, M, N

600

Classes

H, K

400

Classes

G, D, M, N

1,000

Classes

H, K

750

Sea level

70,000 feet

---

325

175

1/ These are not working voltages.

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TABLE IV. Type III test voltage (Volts rms, 60 Hz). 1/

Humidity

conditioned

(see 4.5.15)

All other

conditions

Altitude

Class G

Sea level

70,000 feet

500

---

500

200

1/ These are not working voltages.

3.5.7 Cable retention (flat cable only). When connectors are tested as specified in 4.5.9, they shall withstand the

minimum applied force without mechanical damage.

3.5.8 Insulation resistance at ambient temperature. The insulation resistance of unmated connectors shall conform

to the applicable requirements in table V when tested as specified in 4.5.10.

TABLE V. Insulation resistance (megohms minimum).

Humidity conditioned (see 4.5.15)

After step 6 of test

procedure EIA-364-31

Megohms (min)

1

After 24 hours of conditioning

test procedure EIA-364-31

Megohms (min)

All other

conditions

Megohms (min)

5,000

1,000

3.5.9 Contact resistance. Contact resistance for mated pairs of pin and socket contacts shall be as specified in

table VI when tested as specified in 4.5.11.

TABLE VI. Contact resistance (millivolts maximum).

Contacts

Contact

size or

type

AWG

wire

size

Test

current

(amperes)

Classes

G, D, M, N

After All others

salt spray conditions salt spray

H, K

All others

After

conditions

24

20

24

20

28

24

3.0

7.5

2.0

5.0

1.0

3.0

55

65

---

75

55

45

55

---

65

45

---

ind 165

avg 90

---

ind 165

avg 70

---

20

IDC

PWB

---

3.5.10 Contact engagement and separation forces. Socket contacts shall conform to the forces specified in table

VII when tested as specified in 4.5.12.

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TABLE VII. Contact engagement and separation forces (ounces).

Initial

Solder

contact

size

Maximum individual

engagement force

using maximum

diameter test pin

12.0

Maximum average

engagement force

using maximum

diameter test pin

9.5

Minimum separation

force using

minimum diameter

test pin

0.7

22D

20

18.0

12.0

IDC

18.0

12.0

0.7

After conditioning

22D

20

IDC

14

22

11.4

14

0.6

3.5.11 Temperature cycling (classes G, H, and N). There shall be no damage detrimental to operation of the

connector after being subjected to the temperature extremes in table VIII as specified in 4.5.13.

TABLE VIII. Temperature extremes.

Extremes

Low

°C

-55 +0

-3

High

+125 +3

-0

3.5.11.1 Temperature cycling (classes D, K, and M). There shall be no damage detrimental to connector operation

after being subjected to testing specified in 4.5.13.1. Following the test, the connectors shall withstand the sea level

dielectric withstanding voltage specified in table III.

3.5.12 Air leakage (classes H and K connectors). When tested as specified in 4.5.14, the air leakage rate of

classes H and K connectors shall be no greater than one micron cubic foot per hour at a differential of one atmosphere

(1.04 x 10^-5atmospheres cm³/s). The specified leakage rate shall apply only through the connector and not through

the flange to the mounting surface joint.

3.5.13 Humidity. Connectors shall meet the applicable dielectric withstanding voltage and insulation resistance

requirements (see 3.5.6 and 3.5.8) when tested as specified in 4.5.15.

3.5.14 Vibration. Mated connectors shall not be damaged and there shall be no loosening of parts due to vibration.

Counterpart connectors shall be retained in engagement and there shall be no interruption of electrical continuity or

current flow longer than 1 microsecond when tested as specified in 4.5.16.

3.5.15 Shock. Mated connectors shall not be damaged and there shall be no loosening of parts, nor shall there be

an interruption of electrical continuity or current flow longer than 1 microsecond during the exposure to mechanical

shock, as specified in 4.5.17.

3.5.16 Durability. Counterpart connectors shall show no mechanical or electrical defects detrimental to the

operation of the connector, as specified in 3.5.4 and 3.5.10, after 500 cycles of mating and unmating as specified in

4.5.18.

3.5.17 Salt spray (corrosion). Mated connectors shall show no exposure of base metal due to corrosion which will

affect performance as specified in 3.5.4, 3.5.5, 3.5.8, and 3.5.9 when tested as specified in 4.5.19.

3.5.18 Oversize pin exclusion. Socket contacts shall exclude the entry of the test pin specified in table IX when

tested as specified in 4.5.20. After testing, the contacts shall meet the contact resistance requirements specified in

3.5.9.

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TABLE IX. Oversize pin exclusion.

Contact

size

diameter

.046

20

3.5.19 Resistance to test probe damage. Socket contacts shall meet the engaging and separating force

requirements specified in 3.5.10 and shall show no evidence of visible damage when tested as specified in 4.5.21.

3.5.20 Fluid immersion. Connectors shall mate within the forces specified in 3.5.4 after being subjected to the fluid

immersion test as specified in 4.5.22.

3.5.21 Insert retention.

3.5.21.1 Insert retention (classes D, G, M, and N). Inserts shall not be dislocated from their original positions with

an axial load of 60 lb/in²applied as specified in 4.5.23.

3.5.21.2 Insert retention (classes H and K). Classes H and K inserts shall not be dislocated from their original

positions or damaged when an effective pressure differential of 200 lb/in²is applied as specified in 4.5.23.

3.5.22 Contact pin strength. After being subjected to mechanical loading specified in 4.5.25 pin contacts shall

exhibit a permanent set no greater than .005 inch.

3.5.23 Solderability. Solderable, nonremovable contact terminations shall withstand the test specified in 4.5.24.

Printed wiring tails shall meet the solderability requirements in accordance with MIL-STD-202, method 208.

3.5.24 Thermal vacuum outgassing (classes D, K, and M). The entire connector assembly, when tested as

specified in 4.5.26, shall have maximum total mass loss (TML) of 1.0 percent of the original specimen mass and shall

have a maximum volatile condensable material (VCM) content of 0.1 percent of the original specimen mass.

3.5.25 Resistance to soldering heat. Solderable, nonremovable contact connectors shall withstand the tests

specified in 4.5.27.

3.6 Marking. Connectors shall be marked in accordance with method I of MIL-STD-1285 or an equivalent industry

standard, and shall include the military PIN (see 3.1), the manufacturer's name or code symbol, and date code.

3.6.1 Insert marking. Raised or depressed characters may be used. Markings are shown on the applicable military

specification sheet or standard. Socket face and pin faces are the opposite. Contact position markings shall appear

on both sides of the insert. On insulation displacement connectors, the first and last pin number of each row shall be

marked clearly on the housing.

3.6.1.1 Contact designations. All contact locations shall be designated by identifiable characters on the front and

rear faces of the insert or insert assembly. Positioning and arrangement of the characters shall be such that the

corresponding contact location may be readily identifiable. Connector shell marking and insert marking shall remain

legible after completion of the tests specified in 4.5.

3.6.2 Connector kit package. Each connector kit package shall contain a removable contact connector (marked

with the complete connector PIN), a full complement of contacts for the connector, and an applicable insertion/removal

tool as required by the detail specification sheet (see 3.1).

3.7 Workmanship. Connectors shall be processed in such a manner as to be uniform in quality and shall be free

from burrs, crazing, cracks, voids, pimples, chips, blisters, pin holes, sharp cutting edges, and other defects that will

adversely affect life, serviceability, or appearance. Sharp cutting edges are acceptable on the terminations of IDC

connectors.

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4. VERIFICATION

4.1 Classification of inspections. The inspections specified herein are classified as follows:

a. Qualification inspection (see 4.3).

b. Conformance inspection(see 4.4).

4.2 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in accordance with

the test conditions specified in the "GENERAL REQUIREMENTS" of MIL-STD-202 and EIA-364.

4.2.1 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities of sufficient

accuracy, quality and quantity to permit performance of the required inspection shall be established and maintained by

the contractor. The establishment and maintenance of a calibration program to control the accuracy of the measuring

and test equipment (i.e. NCSL Z540.3, ISO 10012 or comparable standards) shall be required.

4.2.2 Assembly plants. Assembly plants must be listed on or approved for listing on the applicable Qualified

Products List (QPL). The qualified connector manufacturer shall certify that the assembly plant is approved for the

distribution of the manufacturer's parts. The assembly plant shall use only piece parts supplied by the qualified

connector manufacturer. No testing other than visual inspection is required of certified piece parts obtained from the

qualified connector manufacturer, except when there is cause for rejection. All assemblies produced at the assembly

plant shall be subjected to inspection of product to assure that the assembly process conforms with established at the

qualified manufacturing plant. Quality control requirements, including Government inspection surveillance, shall be the

same as required for the qualified connector manufacturer.

4.2.3 Established reliability and high reliability practice. An established reliability and high reliability practice shall

be maintained in accordance with MIL-STD-790. Evidence of such compliance shall be verified by the qualifying

activity of this specification as a prerequisite for initial and continued qualification.

4.3 Qualification inspection. Qualification inspection shall be performed at a laboratory acceptable to the

Government (see 6.3) on sample units produced with equipment and procedures normally used in production. Use of

alternate materials, platings, and processes shall be identified in the product test documentation (see 3.3.1).

4.3.1 Sample size.

4.3.1.1 Connectors. A minimum of 6 completely assembled plugs and receptacles of each class (1.3.1) of each

type (1.3.3), and of each style (1.3.2), with the largest insert arrangement for which qualification is desired shall be

subjected to the examinations and tests, except for thermal vacuum outgassing, in the sequence shown in table XI.

For classes D, K, and M, all the nonmetallic materials, including lubricants, of two additional connectors shall be

subjected to the thermal vacuum outgassing test. If classes G and N or M and D are being qualified at the same time,

a minimum of three completely assembled plugs and receptacles with the insert arrangement of the largest size

connector of the type (1.3.3) with the same style of termination (1.3.2), and each class (classes G and N, 3 class G, 3

class N; classes D and M, 3 class M, 3 class D) shall be subjected to the examinations and tests, except for thermal

vacuum outgassing, in the sequence shown in table XI. For classes D and M, all the nonmetallic materials, including

lubricants, of one additional connector of each class shall be subjected to the thermal vacuum outgassing test. The

connectors shall have a full complement of contacts. Half of the class H and class K contacts shall have solder cups

and the remainder shall have eyelets. The samples subjected to qualification testing shall be provided with

counterpart connectors for those tests requiring mating assemblies. The counterpart connectors provided for this

purpose shall be new, previously qualified connectors or new connectors submitted for qualification testing. Suppliers

not producing mating connectors shall submit substantiating, certification data that tests were performed with qualified

counterpart connectors. The samples shall be taken from a production run and shall be produced with equipment and

procedures normally used in production.

4.3.1.1.1 Printed wiring board connectors. When qualifying plugs and receptacles of printed wiring board

termination types, both the plug and receptacle shall be mounted to printed wiring boards and test as mated

connectors.

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4.3.1.2 Qualification of additional connectors. For all other connector sizes of the same type, class, and style of

termination for which qualification is desired, two each of the completely assembled plugs and receptacles shall be

subjected to the examinations and tests in the sequence shown in table XI. Mating plugs and receptacles shall be

furnished.

4.3.1.3 Preparation of samples. Connectors shall be wired with approximately 2 feet of wire in accordance with

NEMA HP 3, type E and table X. Half of the connectors of each type shall be wired with the maximum wire size and

the remainder shall be wired with the minimum wire size specified in table X. Termination of wires to contacts shall be

accomplished as follows: A MIL-C-22520/2 crimping tool (see 3.1), shall be used for removable contacts. Soldering

shall be used for nonremovable contacts. Insulation displacement connectors shall use flexible, flat, unshielded, round

conductor cable (see 3.3.1).

TABLE X. Test wire sizes.

Contact size

Maximum

wire size

20

Minimum

wire size

24

20

22D

22

28

IDC

28 stranded

4.3.2 Inspection routine. The sample shall be subjected to the inspections specified in table XI, in the order shown.

All sample units shall be subjected to visual and mechanical inspection before wiring (see 4.3.1.2 and 4.4.1).

4.3.3 Failures. One or more failures shall be cause for refusal to grant qualification approval.

4.3.4 Verification of qualification. To retain qualification, the contractor shall verify in coordination with the qualifying

activity the capability of manufacturing products which meet the requirements of this specification. Refer to the

qualifying activity for the guidelines necessary to retain qualification to this specification. The contractor shall

immediately notify the qualifying activity when inspection data indicates failure of the qualified product to meet the

requirements of this specification.

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TABLE XI. Qualification inspection.

Inspection

Requirement

paragraph

Test

method

Connector

class 1/

paragraph

1

2

3

4

X

5

Group I

Visual and mechanical inspection

X

3.1, 3.3, 3.4,

3.6, and 3.7

4.5.2

Magnetic permeability (classes N and M) 2/

Maintenance aging (crimp type)

Contact insertion and removal forces

Mating and unmating force

Contact retention 3/

X

3.5.1

3.5.2

3.5.3

3.5.4

3.5.5

4.5.3

4.5.4

4.5.5

4.5.6

4.5.7

X

Dielectric withstanding voltage: 2/

At sea level

At altitude

X

3.5.6

3.5.7

3.5.8

3.5.9

3.5.10

3.5.4

3.5.11

3.5.11.1

3.5.12

3.5.13

3.5.6

4.5.8.1

4.5.8.2

4.5.9

4.5.10

4.5.11

4.5.12

4.5.6

4.5.13

4.5.13.1

4.5.14

4.5.15

4.5.8

4.5.10

4.5.16

4.5.17

4.5.18

4.5.12

4.5.6

Cable retention (flat cable only) 4/

Insulation resistance at ambient temperature 2/

Contact resistance

Contact engagement and separation forces

Mating and unmating force

Temperature cycling (classes G, H, and N)

Temperature cycling (classes D, K, and M)

Air leakage (classes H and K)

Humidity

Dielectric withstanding voltage

Insulation resistance

Vibration

Shock

Durability

Contact engagement and separation forces

Mating and unmating force

Salt spray (corrosion) 3/

Contact resistance

Mating and unmating

Contact retention

X

3.5.8

3.5.14

3.5.15

3.5.16

3.5.10

3.5.4

3.5.17

3.5.9

3.5.4

X

4.5.19

4.5.11

4.5.6

X

3.5.5

3.5.18

3.5.9

4.5.7

Oversize pin exclusion

Contact resistance

4.5.20

4.5.11

4.5.21

4.5.12

4.5.22

4.5.6

Resistance to test probe damage

Contact engagement and separation forces

Fluid immersion 2/

Mating and unmating force 2/

Insert retention

3.5.19

3.5.10

3.5.20

3.5.4

3.5.21

3.1, 3.3, 3.4,

3.6 and 3.7

3.5.24

X

4.5.23

4.5.2

Visual and mechanical inspection

Thermal vacuum outgassing (classes D, K, and M) 5/

X

4.5.26

Group II 6/, 7/

Resistance to solder heat

X

3.5.25

4.5.27

Group III

Solderability 6/

Contact pin strength

X

3.5.23

3.5.22

4.5.24

4.5.25

See footnotes on next page.

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TABLE XI. Qualification inspection – Continued.

1/

Connector class:

1. Classes D and G -Removable contact connectors.

2. Classes D and G -Nonremovable contact connectors.

3. Classes M and N -Removable contact connectors.

4. Classes M and N -Nonremovable contact connectors.

5. Classes H and K -Nonremovable contact connectors.

2/

3/

4/

Not applicable for periodic inspection.

Not applicable for non-removable contacts.

DC Connectors shall meet the test requirements specified for classes G and D nonremovable contact

connectors.

5/

6/

7/

See 4.5.1.1 (nonmetallic materials of two connector assemblies).

Not applicable for crimp, wrappost, and IDC contacts.

Not applicable for hermetic connectors.

4.4 Conformance inspection.

4.4.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A inspection.

4.4.1.1 Inspection lot. An inspection lot shall consist of all connectors or removable crimp contacts, as applicable,

covered by one specification sheet, produced under essentially the same conditions, and offered for inspection at one

time.

4.4.1.2 Group A inspection. Group A inspection shall consist of the inspections specified in Table XII, in the order

shown.

4.4.1.2.1 Sampling plan (group A). Table XII tests shall be performed on a production lot basis. Samples shall be

selected as specified in table XIII. If one or more defects are found, the lot shall be screened for that particular defect

and the defective parts removed. A new sample of parts shall be selected as specified in table XIII and all group A

tests again performed. If one or more defects are found in the second sample, the lot shall be rejected and shall not

be supplied to this specification.

TABLE XII. Group A inspection.

Inspection

Requirement

paragraph

Test method

paragraph

Visual and mechanical inspection

3.1, 3.3, 3.4,

3.6, and 3.7

3.5.10

4.5.2

Contact engagement and separation forces

(nonremovable contacts)

Insulation resistance at ambient

temperature

Dielectric withstanding voltage

(sea level)

4.5.12

4.5.10

4.5.8

3.5.8

3.5.6

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TABLE XIII. Lot and sample size.

Lot size

Sample size

2 to 12

13 to 150

100%

13

151 to 280

20

281 to 500

29

501 to 1,200

34

1,201 to 3,200

3,200 to 10,000

10,001 to 35,000

35,001 to 150,000

150,001 to 500,000

500,001 and over

42

50

60

74

90

102

4.4.2 Retention of qualification. Retention of qualification inspection on connectors shall consist of the

examinations and tests shown in table XI. Shipment shall not be held up pending the results of this inspection.

4.4.3 Periodic inspection. Periodic inspection shall consist of group B inspection, except where the results of this

inspection show noncompliance with the applicable requirement (4.4.3.1.4). Delivery of products, which have passed

group A, shall not be delayed pending the results of these periodic inspections.

4.4.3.1 Group B inspection. Group B inspection shall consist of the inspections specified in table XI, in the order

shown. Group B inspection shall be made on sample units which has been randomly selected from inspection lots,

which have passed the group A inspection.

4.4.3.1.1 Sampling plan.

Group I: Sample connectors consisting of two mated pairs of each class, of each type, of each style of

termination, with the largest insert arrangement and all the nonmetallic materials, including lubricants,

of one connector of classes D, K, and M for which retention of qualification is desired shall be selected

every 36 months. If production of a particular PIN is not current, the group B tests must take place at

the time production is resumed. The testing shall revert to the original schedule, which is applied to a

newly qualified product. If group B testing on classes G and N, D and M, or G, N, D, M is desired, one

completely assembled plug and receptacle of each class shall be subjected to the examinations and

tests in lieu of two of a single class.

Group II: One each of plug and receptacle with the largest insert arrangement being tested shall be submitted.

Group III: Twenty contacts each for pin and socket solder type termination being tested shall be submitted for

solderability requirements, and eight pin contacts of each type being tested shall be submitted for

contact and pin strength requirements.

4.4.3.1.2 Failures. If any sample units fail to pass group B inspection, the entire sample shall be considered to have

failed.

4.4.3.1.3 Disposition of sample units. Sample units, which have been subjected to group B inspection, shall not be

delivered on the contract.

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4.4.3.1.4 Noncompliance. If a sample fails to pass group B inspection, the manufacturer shall notify the qualifying

activity and the cognizant inspection activity of such failure and take corrective action on the materials or processes, or

both, as warranted, and on all units of product which can be corrected and which were manufactured using essentially

the same materials and processes, and which are considered subject to the same failure. Acceptance and shipment

of the product shall be discontinued until corrective action, acceptable to the qualifying activity has been taken. After

the corrective action has been taken, group B inspection shall be repeated on additional sample units (all inspections,

or the inspection which the original sample failed, at the option of the qualifying activity). Group A inspection may be

reinstituted; however, final acceptance and shipment shall be withheld until the group B inspection has shown that the

corrective action was successful. In the event of failure after inspection, information concerning the failure shall be

made available to the cognizant inspection activity and the qualifying activity.

4.5 Methods of inspection.

4.5.1 Test methods. The following tests and test procedures assure connector integrity within typical operating

conditions and applications. Alternate commercial industry standard test methods are allowed. However when and

alternate methods are used, the qualifying activity must be notified prior to performance of the test. The test methods

described herein are proven methods and shall be the referee method in cases of dispute.

4.5.2 Visual and mechanical inspection. Connectors and contacts shall be examined to verify that the dimensions,

materials, design, construction, marking, and workmanship are in accordance with the applicable requirements (see

3.1, 3.3, 3.4, 3.6, and 3.7).

4.5.3 Magnetic permeability (classes M and N) (see 3.5.1). Permeability shall be measured on classes M and N

connectors with an instrument conforming to ASTM A342/A342M. The connectors may be wired or unwired, but shall

not be carrying current. Requirements shall be as specified in 3.5.1.

4.5.4 Maintenance aging (crimp contact connectors only (see 3.5.2)). Connectors shall be tested in accordance

with test procedure EIA-364-24. Installing/removal tools shall be in accordance with the applicable specification sheet

(see 3.1). Twenty percent of the contacts in a plug or receptacle, but not less than three contacts per connector

mating half, shall be tested.

4.5.5 Contact insertion and removal forces (see 3.5.3). Contacts shall be inserted and removed in accordance with

test procedure EIA-364-05. Installing/removal tools shall be in accordance with the applicable specification sheet

(see 3.1).

4.5.6 Mating and unmating force (see 3.5.4). Mated connectors shall be tested in accordance with test procedure

EIA/ECA-364-13. The rate of mating and unmating shall be 1 to 10 inches per minute.

4.5.7 Contact retention (see 3.5.5). Connectors shall be tested in accordance with test procedure EIA/ECA-364-29.

The following details shall apply:

a. Axial direction: Shall be applied in both directions.

b. Axial load: As specified.

4.5.8 Dielectric withstanding voltage (see 3.5.6).

4.5.8.1 Sea level. Unmated connectors shall be tested in accordance with test procedure EIA-364-20, condition I.

The applicable test voltages specified in 3.5.6 shall be applied between all adjacent contacts and between the shell

and each peripheral contact. Requirements shall be as specified in 3.5.6. For group A inspection testing, voltage may

be applied for a minimum of 10 seconds.

4.5.8.2 Altitude. The connectors shall be tested in accordance with test procedure EIA-364-20, condition IV. After

5 minutes at the simulated altitude, the connectors shall be tested as specified in 4.5.8.1.

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4.5.9 Cable retention (flat cable only) (see 3.5.7). The unmated wired connector with strain relief, when applicable,

shall be mounted by normal mounting means and aligned with the test fixture. An axial force of 8 ounces per contact

shall be applied. The force shall be applied 6 inches from the mating face of the connector to the cable and shall pull

away from the connector in a direction that will put the maximum stress on the contact-cable interface.

4.5.10 Insulation resistance at ambient temperature (see 3.5.8). Unmated connectors shall be tested in accordance

with test procedure EIA/ECA-364-21. The resistance shall be measured between the contact shell and a point

including 50 percent, (but not less than four) of the contact pairs adjacent to the contact shell, or between the contact

shell and a point including 50 percent, (but not less than six) of the contacts adjacent to the contact shell. The

contacts selected shall be those having the closest spacing between measurement points and the measured

resistance shall be as specified in 3.5.8.

4.5.11 Contact resistance (nonremovable contacts)(see 3.5.9). Contacts shall be tested in accordance with test

procedure EIA-364-06. A minimum of four mated contacts or 20 percent of the mated contacts, whichever is greater,

shall be measured in each connector being tested. The following details apply:

a. Wire size: As specified (see 3.1).

b. Preparation: Connectors mated.

c. Test current: Maximum contact current rating (see 3.5.9).

d. Test circuits for nonremovable and classes H and K connectors shall be as shown in test procedure

EIA-364-06. Test circuit for IDC connectors shall be as shown on figure 3.

4.5.11.1 Classes H and K pin contacts. Classes H and K pin contacts shall be mated with counterpart copper

based alloy socket contacts for the test specified in 4.5.11.

OPTIONAL

POWER

I

SUPPLY

R_L

V

M

FIGURE 3. Contact resistance test circuit for IDC connectors.

4.5.12 Contact engagement and separation forces (see 3.5.10). Contact engagement and separation forces shall

be tested in accordance with test procedure EIA-364-37. Four contacts or 20 percent of the contacts, whichever is

greater, shall be measured in each connector being tested. The following details apply:

a. Insert and separate a maximum diameter pin in and from each socket contact, then insert and remove a

minimum diameter pin in the same sockets. During separation of the minimum diameter test pin, the

minimum separation force shall be as specified in 3.5.10.

b. Insert and separate a maximum diameter pin in and from each socket contact three times. During the third

cycle, the engagement force shall be as specified in 3.5.10.

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4.5.13 Temperature cycling (classes G, H, and N) (see 3.5.11). Unmated connectors shall be tested in accordance

with test procedure EIA-364-32, condition I, 5 cycles, except that the maximum temperature shall be as specified in

table VIII. At the completion of the last cycle, the connectors shall be returned to room temperature for further

examination and shall meet the requirements specified in 3.5.11.

4.5.13.1 Temperature cycling (classes D, K, and M) (see 3.5.11.1). Mated connectors shall be tested in

accordance with test procedure EIA-364-32, condition I, 5 cycles, except that the maximum temperature shall be as

specified in table VIII. At the completion of the last cycle, the connectors shall be returned to room temperature for

further examination and shall meet the requirements specified in 3.5.11.1.

4.5.14 Air leakage (classes H and K connectors) (see 3.5.12). Classes H and K connectors shall be mounted in a

manner suitable for application of one atmosphere pressure differential across the connectors, and tested in

accordance with test procedure EIA-364-02. The leakage rate shall be determined while pressurized air or gas,

containing not less than 10 percent helium by volume, is applied to the connector. Requirements shall be as specified

in 3.5.12.

4.5.15 Humidity (see 3.5.13). The connectors shall be fully wired. The unmated and wired connectors shall be

subjected to a humidity test in accordance with test procedure EIA-364-31, method IV and with the following

exceptions and details as specified in 3.5.13.

a. After the 24 hour conditioning period, the insulation resistance shall be measured.

b. Upon completion of step 6 of the final cycle, connectors shall be removed from the chamber and surface

moisture removed from the insulators. Immediately following removal of surface moisture, the insulation

resistance tests (see 4.5.10) and the sea level dielectric withstanding voltage test (see 4.5.8.1) shall be

conducted.

4.5.16 Vibration (see 3.5.14). The connector assembly shall be mounted as specified herein and vibrated in

accordance with test procedure EIA-364-28, test condition IV. All contacts shall be wired in series with at least 100

milliamperes of current allowed to flow. A suitable instrument shall be employed to monitor the current flow and to

indicate any discontinuity or interruption of current flow. Requirements shall be as specified in 3.5.14.

4.5.16.1 Connector mounting. Each receptacle shall be mounted on a suitable fixture, which in turn shall be

attached to a vibration table. A suitable sensor shall monitor the receptacles at a point on or near the receptacle. A

counterpart plug shall be engaged with the receptacle and shall not be held by any locking means. The wire bundles

or cables attached to the receptacle shall be clamped to nonvibrating points at least 8 inches from the rear of the

receptacle. The wire bundles or cables attached to the plug shall be clamped to a vibrating point 4 ±1/2 inches from

the rear of the plug. The clamping length shall be chosen to avoid resonance of the wire bundles or cables. To

eliminate possible wire breakage when testing connectors wired with number 28 AWG wire, a strain relief clamp that

mounts directly to the connector and reduces the clamping length of the wire bundle to a minimum is permitted.

4.5.16.2 Printed wiring board connector mounting. Right angle connectors shall have the receptacle mounted on an

epoxy glass printed wiring board, 1/16 inch minimum (plus added tolerances) thick and clamped to a suitable fixture

which in turn shall be firmly mounted on the vibration table. Each plug shall be mounted in the normal manner at one

end of the rectangular epoxy glass laminate board. The board shall be 1/16 inch minimum thick.

4.5.17 Shock (see 3.5.15). Mated connectors shall be subjected to test condition E, test procedure EIA-364-27.

One shock shall be applied in each direction of the three major axes of the connectors. Receptacles shall be mounted

similar to the mounting specified in 4.5.16.1. Plugs shall be engaged with the receptacles and shall not be held by any

locking means. All contacts shall be wired in series with a minimum of 100 milliamperes of current allowed to flow. The

wire bundles or cables shall be clamped to structures that move. A minimum of 8 inches of wire or cable shall be

unsupported behind the rear of the receptacle and 4 ±1/2 inches of wire or cable shall be unsupported behind the rear

of the plug. A suitable instrument shall be employed to indicate any discontinuity or interruption of current flow.

Requirement shall be as specified in 3.5.15.

22

MIL-DTL-24308G

w/AMENDMENT 2

4.5.17.1 Printed wiring board connector mounting. Mounting method as specified in 4.5.16.2.

4.5.18 Durability (see 3.5.16). Connectors shall be tested in accordance with test procedure EAI-364-09. The

following details apply:

a. Mated and unmated 500 times at a rate of 200 ±100 cycles per hour.

b. After 500 cycles mated connectors shall be subjected to salt spray.

4.5.19 Salt spray (corrosion) (see 3.5.17). Mated connectors shall be subjected to a salt spray test in accordance

with test procedure EIA/ECA-364-26, test condition B. After exposure, connectors shall be thoroughly washed with tap

water to remove all salt deposits and then shall be dried in a circulating air oven at temperature of 38°C ±3°C for a

period of 12 hours. They shall then be visually examined for evidence of corrosion and subjected to the contact

resistance test specified in 4.5.11 and the mating and unmating force test as specified in 4.5.6.

4.5.20 Oversize pin exclusion (see 3.5.18). A hardened steel oversize pin, as specified in 3.5.18, shall be placed in

a position centered and parallel to the axis of the socket contact. A 12-ounce axial force shall then be applied tending

to force the test pin into the socket contact. After completion of the test, the contacts shall be subjected to the contact

resistance test as specified in 4.5.11. This test shall be performed on 20 percent or a minimum of four, of the socket

contacts in each connector.

4.5.21 Resistance to test probe damage (see 3.5.19). Socket contacts shall be tested in accordance with test

procedure EIA-364-25. The following details shall apply:

a. The test shall be performed on 20 percent of the contacts, or a minimum of four contacts.

b. After testing, the contacts shall meet the requirements specified in 3.5.19 (contact engagement and

separation).

c. Type 1 or type 2 contact holding device.

d. Probe damage tool shall be inserted into the contact to the following depths:

Contact

size

Holding fixture

Type 1

Type 2

20

.202 ±.005, .077 ±.005

.250 ±.005, .125 ±.007

IDC

20

.202 ±.005, .077 ±.005

.250 ±.005, .125 ±.007

e. The diameter of the handle (.190) is not applicable.

4.5.22 Fluid immersion (see 3.5.20). Connectors shall be tested in accordance with test procedure EIA-364-10.

The following details apply:

a. Test fluid (a).

b. Test fluid (d).

4.5.23 Insert retention (see 3.5.21). Unmated connectors shall be tested in accordance with test procedure

EIA-364-35:

a. Force to be applied: 10 lb/in²per second until pressure specified in 3.5.21 is reached.

b. For classes D, G, M, and N connectors, the wired contacts may be removed for convenience of testing.

23

MIL-DTL-24308G

w/AMENDMENT 2

4.5.24 Solderability (see 3.5.23). Solderability, nonremovable contact terminations except wrappost, IDC, and

crimp, shall be tested in accordance with method 208 of MIL-STD-202 (type R or RMA flux may be used). Solder cup

terminations shall be tested in the following manner:

a. Test samples shall not be cleaned prior to soldering.

b. Test sample connectors shall have the solder cups dipped in, or brushed with, flux type RMA just prior to the

application of solder.

c. A pencil type soldering iron shall be used, with temperature regulated to 360°C ±10°C to heat the test solder

cups.

d. After heating the test solder cups to a solder melt temperature, 63/37 tin-lead type solder shall be applied to

fill the solder cup to a capacity which will result in solder wetting the entire cup surface and forming a solder

fill meniscus across the open portion of the solder cup.

e. The finished solder fill shall be smooth and slightly concave with clear wetting and adhesion to all internal

surfaces of the solder cup. Inspection shall be aided by a 10X optical aid.

f. Twenty percent but not less than seven contacts of test specimen shall be tested.

4.5.25 Contact pin strength (nonremovable contacts) (see 3.5.22). Contacts shall be mounted in a suitable fixture

and a gradual load applied to the pin as shown on figure 4. The rate of travel of the testing machine shall not exceed

1 inch per minute, and the load shall be maintained for one minute +15, -0 seconds. The permanent set shall be the

difference between the initial and final position of the load application after load removal.

L

0.8L

MIN

PERMANENT

SET

Mating

end

moment

(lb-in.)

size

(unless otherwise

specified see 3.1)

20

22

23

24

.53

.22

.16

.13

FIGURE 4. Contact pin strength.

24

MIL-DTL-24308G

w/AMENDMENT 2

4.5.26 Thermal vacuum outgassing (classes D, K, and M) (see 3.5.24). All nonmetallic materials, including

lubricants, used in the manufacture of these connectors shall be tested in accordance with JSC SP-R-0022 or

ASTM E595 to determine the maximum TML of the original specimen mass and the VCM content of the original

specimen mass. For the purpose of determining TML and VCM of connectors, the original specimen mass shall be

the assembled connector mass excluding metallic parts. The TMC and VCM for the connectors may be determined by

testing the specific materials of the connector and calculating the loss for the connector.

4.5.27 Resistance to solder heat (solderable, nonremovable contacts only) (see 3.5.25). Unmated connectors with

printed wiring board terminations shall be tested in accordance with method 210 of MIL-STD-202, condition C.

Unmated connectors with solder terminations shall be tested as follows:

a. Where applicable (not for printed circuit board type connectors) the appropriate copper wire size, 2 to 4

inches in length, properly prepared for the applicable solder cup size shall be inserted into the contact

termination. Seven contacts or twenty percent of the contacts, whichever is greater, shall be tested.

b. The test specimens shall be fluxed accordingly with flux liquid or other techniques (see 3.3.1).

c. The solder iron shall be heated to a temperature of 360°C ±10°C. It shall be applied to the termination for a

period necessary to hold the solder in a liquid state for 4 to 5 seconds. Solder type to be used is SN-63 in

accordance with J-STD-006.

d. After application, the soldering iron shall be removed and a visual and mechanical inspection performed. The

visual inspection shall be at 10X.

e. The connector shall show no evidence of distortion or damage to any area of the connector housing. The

contact shall meet the contact retention requirement (see 3.5.5).

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirement shall be as specified in the contract or order

(see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these personnel

need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging

requirements are maintained by the Inventory Control Point's packaging activity within the Military Service or Defense

Agency, or within the military service's system commands. Packaging data retrieval is available from the managing

Military Department or Defense Agency's automated packaging files, CD-ROM products, or by contacting the

responsible packaging activity.

6. NOTES

(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory.)

6.1 Intended use. These connectors are intended for general military use. Connector installations should be

designed to assure that connectors are mated within the limits specified in 3.4.5. The class and types of connectors

are intended for application as follows:

a. Classes G and N connectors are intended for use in applications where the operating temperature range

-55° to +125°C is experienced. Crimp contact connectors have the additional advantage of possessing

removable crimp-type contacts.

b. Class N connectors are intended for use in applications where the presence of residual magnetism must be

held to very low levels to avoid interference with nearby sensitive instrumentation.

c. Class H receptacles are intended for use in applications where atmospheric pressures must be contained by

the connectors across the wall or panels on which they are mounted. If air leakage requirements are critical,

a class H connector should be used.

d. Crimp contact connectors should have contacts present in all positions when the connector is installed.

25

MIL-DTL-24308G

w/AMENDMENT 2

e. Classes D, K, and M connectors are for high reliability space applications.

f. Connector installations should be designed to assure that connectors are mated within the limits specified

in 3.4.5.

6.2 Acquisition requirements. Acquisition documents must specify the following:

a. Title, number, and date of the specification.

b. Title, number, and date of the applicable specification sheet and the complete PIN (see 3.1).

c. Packaging requirement (see 5.1).

6.3 Qualification. With respect to products requiring qualification, awards will be made only for products which are,

at the time of award of contract, qualified for inclusion in Qualified Products List QPL No. 24308 whether or not such

products have actually been so listed by that date. The attention of the contractors is called to these requirements, and

manufacturers are urged to arrange to have the products that they propose to offer to the Federal Government tested

for qualification in order that they may be eligible to be awarded contracts or orders for the products covered by this

specification. Information pertaining to qualification of products may be obtained from Defense Supply Center

Columbus (DSCC-VQ), Document Control Unit, Columbus, OH 43218-3990 or e mail vqchief@dla.mil. An online

listing of products qualified to this specification may be found in the Qualified Products Database (QPD) at

https://assist.dla.mil.

6.4 Copyright notice. All information disclosed in this specification and related specification sheets and military

standards which are or may be copyrighted by IIT Cannon Electric are reproduced herein with the express permission

of the copyright owner.

6.5 Definitions.

6.5.1 Overall finish. A finish having a specified minimum thickness applied over the entire surface area, such as

barrel plating technique or other nonselective plating techniques, etc.

6.5.2 Localized finish. A finish having a specified minimum thickness applied to a definite area, such as, clad, inlay,

welded dot, selective plating technique, etc.

6.5.3 Gold finish. A finish having an unspecified thickness of gold not requiring a specific thickness.

6.6 Specification sheet selection. Use table XIV to determine desired connector specification sheet from the

features listed.

6.7 Tin whisker growth. The use of alloys with tin content greater than 97 percent may exhibit tin whisker growth

problems after manufacture. Tin whiskers may occur anytime from a day to years after, and can develop under typical

operation conditions on products that use such materials. Conformal coatings applied over top of a whisker-prone

surface will not prevent the formation of tin whiskers. Alloys of 3 percent lead have shown to inhibit the growth of tin

whiskers.

26

MIL-DTL-24308G

w/AMENDMENT 2

TABLE XIV. Specification sheet selection .

Specification

sheet

Class

D, G

Mounting

method

Contact

type

Termination

type

Contact

size

20

Positions available

1/

9,15, 25, 37, 50

none

M24308/1

Panel

Socket

Solder cup 2/

22D

20

22D

9,15, 25, 37, 50

15, 26, 44, 62, 78,

104

M24308/2

D, G

Panel

Socket

Crimp

20

22D

20

22D

9,15, 25, 37, 50

none

9,15, 25, 37, 50

15, 26, 44, 62, 78,

104

M24308/3

M24308/4

D, G

Panel

Solder cup 2/

Crimp

20

22D

20

22D

9,15, 25, 37, 50

none

9,15, 25, 37, 50

15, 26, 44, 62, 78,

104

M24308/5

M24308/6

M, N

Panel

Socket

Solder cup 2/

Crimp

20

22D

20

22D

9,15, 25, 37, 50

none

9,15, 25, 37, 50

15, 26, 44, 62, 78,

104

M24308/7

M24308/8

M, N

Panel

Solder cup 2/

Crimp

20

22D

9,15, 25, 37, 50

none

M24308/9

H, K

Panel

Solder cup, eyelet

2/

20

22D

20

22D

9,15, 25, 37, 50

15, 26, 44, 62, 78

9,15, 25, 37, 50

15, 26, 44, 62, 78

M24308/23

M24308/24

G

PCB

Socket

Straight, right angle

M24308/25

M24308/26

Male screw lock

Female screw lock

20

22D

20

22D

9,15, 25, 37

M24308/27

G

Panel

Socket

IDC

M24308/28

G

1/ See Appendix A.

2/ See Appendix B.

27

MIL-DTL-24308G

w/AMENDMENT 2

6.8 Subject term (key word) listing.

Contacts

Crimp

Current

Finish

Heat

Humidity

Inspection

Insulation displacement

Magnetic permeability

Materials

Mating force

Military standards

Plug

Printed wiring board

Qualification

Sampling

Socket

Solder

Solderability

Temperature

Voltage

6.6. Environmentally preferable material. Environmentally preferable materials should be used to the maximum

extent possible to meet the requirements of this specification. As of the dating of this document, the U.S.

Environmental Protection Agency (EPA) is focusing efforts on reducing 31 priority chemicals. The list of chemicals and

additional information is available on their website at http://www.epa.gov/osw/hazard/wastemin/priority.htm. Included in

the list of 31 priority chemicals are cadmium, lead, and mercury. Use of these materials should be minimized or

eliminated unless needed to meet the requirements specified herein (see section 3).

6.7 Amendment notations. The margins of this specification are marked with vertical lines to indicate modifications

generated by this amendment. This was done as a convenience only and the Government assumes no liability

whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the

requirements of this document based on the entire content irrespective of the marginal notations.

28

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

INSERT ARRANGEMENTS, ELECTRICAL CONNECTOR,

SHELL SIZES 1 THROUGH 6

A.1 SCOPE

A.1.1 Scope. This appendix covers insert arrangements for use with MIL-DTL-24308 rectangular

nonenvironmental, polarized shell, miniature, rack and panel connectors. This Appendix is a mandatory part of the

specification. The information contained herein is intended for compliance.

A.2 APPLICABLE DOCUMENTS

(This section not applicable to this appendix.)

A.3 GENERAL REQUIREMENTS

(This section not applicable to this appendix)

A.4 DETAIL REQUIREMENTS

A.4.1 Insert arrangements. See table A-I below and figures A-1 through A-6.

TABLE A-I. Insert arrangements.

Arrangement Shell

Contacts

Superseded

MS Number

Figure

number

size

No. 22D

No. 20

9

1

2

-

MS18273-1

MS18273-2

A-1

A-2

1

15

-

1

-

15

MS18274-1

2

1

26

-

MS18274-2

MS18275-1

25

A-3

A-4

3

4

2

1

2

1

2

1

44

-

37

-

MS18275-2

MS18276-1

MS18276-2

MS18277-1

MS18277-2

MS14004-1

62

-

50

-

A-5

A-6

5

6

78

104

-

29

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

A.4.1.1 Dimensions. Dimensions shall be as specified in the applicable section of this appendix and the

following:

a. Dimensions are in inches.

b. Metric equivalents are given for information only.

c. All dimensions are TP (true position).

d. Contact holes in insert shall be located on TP within a .005 (0.13 mm) diameter circle. Maximum material

condition applies.

e. Markings are shown for the pin insert front. Socket inserts are opposite.

f. In the event of a conflict between the text of this appendix and the references cited herein, the text of this

appendix shall take precedence.

30

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 1

9 size 20 contacts.

Inches

.010

.035

.054

.055

.056

.078

.080

.100

.108

.112

.125

.145

.162

.170

.190

.215

.216

mm

0.25

0.89

1.37

1.40

1.42

1.98

2.03

2.54

2.74

2.84

3.18

3.68

4.11

4.32

4.83

5.46

5.49

ARRANGEMENT 2

15 size 22D contacts.

NOTES:

1. Patent notice. The Government has a royalty free license under the U.S. Patents listed below for the benefit of

manufacturers of the items disclosed and described herein, either for the Government or for use in equipment

delivered to the Government.

Patent Numbers

2790153 expires April 23, 1974

3110093 expires November 12, 1980

3185424 expires November 24, 1981

2. Copyright notice. All information disclosed in this military standard which is or may be copyrighted by ITT

Cannon Electric is reproduced herein with the express permission of the copyright owner.

3. Dimensions are in inches.

4. Metric equivalents are given for information only.

FIGURE A-1. Shell size 1.

31

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 1

15 size 20 contacts.

ARRANGEMENT 2

26 size 22D contacts.

Inches

.020

.025

.054

.056

.065

.070

.078

.108

.110

.112

.115

.155

.160

.162

mm

0.51

0.64

1.37

1.42

1.65

1.78

1.98

2.74

2.79

2.84

2.92

3.94

4.06

4.11

Inches

.200

.205

.216

.245

.250

.270

.290

.295

.324

.335

.340

.378

.380

.385

mm

5.08

5.21

5.49

6.22

6.35

6.86

7.37

7.49

8.23

8.51

8.64

9.60

9.65

9.78

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are given for information only.

FIGURE A-2. Shell size 2.

32

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 1

25 size 20 contacts

ARRANGEMENT 2

44 size 22D contacts

Inches

.020

.025

.055

.056

.065

.070

.078

.109

.110

.112

.115

mm

Inches

.155

.160

.163

.200

.205

.218

.245

.250

.272

.290

.295

mm

3.94

4.06

4.14

5.08

5.21

5.54

6.22

6.35

6.91

7.37

7.49

Inches

.326

.335

.340

.380

.381

.385

.425

.430

.435

.470

.475

mm

8.28

8.51

8.64

9.65

Inches

.489

.515

.520

.544

.560

.565

.598

.605

.610

.650

.652

.655

mm

12.42

13.08

13.21

13.82

14.22

14.35

15.19

15.37

15.49

16.51

16.56

16.64

0.51

0.64

1.40

1.42

1.65

1.78

1.98

2.77

2.79

2.84

2.92

9.68

9.78

10.80

10.92

11.05

11.94

12.06

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are given for information only.

FIGURE A-3. Shell size 3.

33

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 1

37 size 20 contacts

FIGURE A-4. Shell size 4.

34

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

.9745

.927

.973

.9255

.8795

.878

.8305

.783

.832

.7845

.737

.7355

.6895

.688

.6405

.593

.642

.5945

.547

.5455

.4995

.498

.4505

.403

.452

.4045

.357

.3555

.3095

.308

.2605

.262

.2145

.167

.1195

.213

.1165

.118

.072

.0705

.0245

.023

ARRANGEMENT 2

62 size 22D contacts

Inches mm

.023 0.58

.0245 0.622

Inches

.218

mm

5.54

Inches

.498

mm

12.65

Inches

.761

.783

.7845

.815

.8305

.832

.870

.878

.8795

.924

.9255

.927

mm

19.33

19.89

19.926

20.70

21.095

21.13

22.10

22.30

22.339

23.47

23.508

23.55

24.71

24.752

24.84

.2605 6.617 .4995 12.687

.055

.056

1.40

1.42

.262

.272

.308

6.65

6.91

7.82

.544

.5455 13.856

.547

13.82

.0705 1.791

13.89

15.06

.072

.078

.109

.112

.118

1.83

1.98

2.77

2.84

3.00

.3095 7.861 .593

.326 8.28

.3555 9.030 .598

.357

.381

.403

.4045 10.27

.435 11.05

.4505 11.443 .707

.452

.489

.5945 15.100

15.19

.6405 16.269

.642

.652

.688

.6895 17.513

17.96

.7355 18.682

.737 18.72

9.07

9.68

10.24

16.31

16.56

17.48

.1195 3.035

.163 4.14

.1655 4.204

.973

.9745

.978

.167

.213

4.24

5.41

11.48

12.42

.2145 5.448

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are given for information only.

FIGURE A-4. Shell size 4 - Continued.

35

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 1

50 size 20 contacts

FIGURE A-5. Shell size 5.

36

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 2

78 size 22D contacts

Inches

.041

.0475

.055

.095

.109

.112

.123

.1425

.163

.190

mm

1.04

1.206

1.40

2.41

2.77

2.84

3.12

3.620

4.14

4.83

Inches

.218

.224

.2375

.272

.285

.326

.3325

.380

.381

.4275

mm

5.54

5.69

6.033

6.91

7.24

8.28

8.446

9.65

9.68

10.859

Inches

.435

.475

.489

.5225

.544

.570

.598

.6175

.652

.665

mm

Inches

.707

.7125

.760

.761

.8075

.815

.855

.870

.9025

mm

11.05

12.07

12.42

13.272

13.82

14.48

15.19

15.685

16.56

16.89

17.96

18.098

19.30

19.33

20.511

20.70

21.72

22.10

22.924

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are given for information only.

FIGURE A-5. Shell size 5 - Continued.

37

MIL-DTL-24308G

APPENDIX A

w/AMENDMENT 2

ARRANGEMENT 1

104 size 22D contacts

Inches

.0165

.031

.064

.0785

.082

.1115

.126

.159

.164

.1735

.2065

mm

0.419

0.79

1.63

1.994

2.08

2.832

3.20

4.04

4.17

4.407

5.245

Inches

.221

.254

.2685

.3015

.316

mm

5.61

6.45

6.820

7.658

8.03

Inches

.4915

.506

mm

12.484

12.85

Inches

.7435

.7765

.791

mm

18.885

19.723

20.09

.539

13.69

.5535

.5865

.601

14.059

14.897

15.27

.824

20.93

.8385

.8715

.886

21.298

22.136

22.50

.349

8.86

.3635

.3965

.411

.444

.4585

9.233

10.071

10.44

11.28

11.646

.634

16.10

.6485

.6815

.696

16.472

17.310

17.68

.919

23.34

.9335

.9665

.981

23.711

24.549

24.92

.729

18.52

NOTES:

1. Dimensions are in inches.

2. Metric equivalents are given for information only.

FIGURE A-6. Shell size 6.

38

MIL-DTL-24308G

APPENDIX B

w/AMENDMENT 2

CONTACT PIN AND SOCKET

CLASSES G, N, AND H SOLDERTYPE,

NON-REMOVABLE

B.1 SCOPE

B1.1 Scope. This appendix covers contacts, pin and socket, classes G, N and H solder type, non-removable for

use with MIL-DTL-24308 rectangular, nonenvironmental, polarized shell, miniature, rack and panel connectors. This

Appendix is a mandatory part of the specification. The information contained herein is intended for compliance.

B.2 APPLICABLE DOCUMENTS

(This section not applicable to this appendix.)

B.3 GENERAL REQUIREMENTS

(This section not applicable to this appendix.)

B.4 DETAIL REQUIREMENTS

B.4.1 Dimensions and configurations. See table B-I and figures B-1 through B-6. The following details apply:

a. Dimensions are in inches.

b. Metric equivalents (to the nearest .01 mm) are given for information only.

c. Dimensions are after plating.

d. Reference documents shall be of the issue in effect on the date of invitation for bids.

e. For design feature purposes, this appendix takes precedence over procurement documents referenced

herein.

f. Lock ring optional - alternate retention for classes G and N connectors, figures B-1 and B-2.

TABLE B-I. Contact configurations.

Figure

number

B-1

B-2

B-3

B-4

B-5

B-6

Size

Contact

Type

Socket

Termination

Class

Superseded

MS number

MS18281-1

MS18281-2

MS18281-3

MS18281-4

MS18281-5

MS18281-6

20

22D

Solder cup

Eyelet

Solder cup

G, N

H

G,N

Socket

.041DIA

.039

LOCKRING

Optional

(See B.4.1f)

FIGURE B-1. Socket, size 20 (solder cup) for

connector classes G, M, N, and D.

FIGURE B-2. Pin, size 20 (solder cup) for

connector classes G,M ,N, and D.

39

MIL-DTL-24308G

APPENDIX B

w/AMENDMENT 2

DIA

FIGURE B-3. Pin, size 20 eyelet for connector

class H.

FIGURE B-4. Pin, size 20 solder cup for

connector class H.

.0305

DIA

.0295

FIGURE B-6. Pin, size 22D (solder cup) for

connector classes G and N.

FIGURE B-5. Socket, size 22D (solder cup)

for connector classes G and N.

Inches

.012

.0295

.0305

.0345

.039

.041

.042

.047

.049

mm

.30

.749

.775

.876

.99

1.04

1.07

1.19

1.24

Inches

.050

.055

.057

.060

.061

.066

.070

.072

mm

1.27

1.40

1.45

1.52

1.55

1.68

1.78

1.83

Inches

.078

.085

.090

.093

.098

.103

.110

.133

mm

1.98

2.16

2.29

2.36

2.49

2.62

2.79

3.38

40

MIL-DTL-24308G

w/AMENDMENT 2

CONCLUDING MATERIAL

Custodians:

Army - CR

Navy - EC

Air Force - 85

NASA - NA

DLA - CC

Preparing activity:

DLA - CC

(Project 5935-2011-124)

Review activities:

Army - AT, CR4, MI

Navy - AS, CG, MC, SH

Air Force - 99

NOTE: The activities listed above were interested in this document as of the date of this document. Since

organizations and responsibilities can change, you should verify the currency of the information above using the

ASSIST Online database at https://assist.dla.mil.

41

型号:	MS1830-1
生命周期：	Active
Reach Compliance Code：	unknown
ECCN代码：	EAR99
HTS代码：	8504.50.80.00
风险等级：	5.7
型芯材料：	PHENOLIC
直流电阻：	0.03 Ω
标称电感 (L)：	0.15 µH
电感器应用：	RF INDUCTOR
电感器类型：	GENERAL PURPOSE INDUCTOR
功能数量：	1
端子数量：	2
最高工作温度：	125 °C
最低工作温度：	-55 °C
最小质量因数（标称电感时）：	50
最大额定电流：	2.45 A
参考标准：	MIL-C-15305
形状/尺寸说明：	TUBULAR PACKAGE
屏蔽：	NO
表面贴装：	NO
端子位置：	AXIAL
端子形状：	PRINTED WIRING PIN
测试频率：	25 MHz
容差：	20%
Base Number Matches：	1

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