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
Military designation
24308/1
Specification
sheet number
-1
Dash number
F
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
N
H
M
D
K
-
-
-
-
-
-
General purpose connectors, see
3.3.6.1
(see note).
Nonmagnetic connectors, see
3.3.6.1
(see note).
Hermetic connectors.
Same as N except, these connectors are intended for space missions.
Same as G except, these connectors are intended for space missions.
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
- Coating, Aluminum, High Purity
MIL-M-24519
- Molding Plastics, Electrical Thermoplastic
2
MIL-DTL-24308G
w/AMENDMENT 2
DEPARTMENT OF DEFENSE STANDARDS
MIL-STD-202
MIL-STD-790
MIL-STD-1285
- 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
(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
ASTM D4067
ASTM D5927
ASTM D5948
-
-
-
-
-
-
-
-
-
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
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
- Contact Resistance Test Procedure for Electrical Connectors
EIA-364-09
- Durability Test Procedure for Electrical Connectors and Contacts
EIA-364-10
- 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
EIA/ECA-364-26
EIA-364-27
EIA-364-28
EIA/ECA-364-29
EIA-364-31
EIA-364-32
EIA-364-35
EIA-364-37
- Maintenance Aging Test Procedure for Electrical Connectors
- Probe Damage Test Procedure for Electrical Connectors
- Salt Spray Test Procedure for Electrical Connectors, Contacts and Sockets
- Mechanical Shock (Specified Pulse) Test Procedure for Electrical Connectors
- Vibration Test Procedure for Electrical Connectors and Sockets
- Contact Retention Test Procedure for Electrical Connectors
- Humidity Test Procedure for Electrical Connectors and Sockets
- Thermal Shock (Temperature Cycling) Test Procedure for Electrical Connectors and
Sockets
- 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
rd
th
Department, 25 W 43 Street, 4 floor, 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
th
Manufacturer’s Association, 1300 North 17 Street, Suite 1847, Rosslyn VA 22209.)
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MIL-DTL-24308G
w/AMENDMENT 2
SOCIETY OF AUTOMOTIVE ENGINEERS, INC.
SAE AMS2404
SAE AMS2700
SAE AMS-QQ-N-290
SAE AMS-QQ-P-416
SAE AMS-P-81728
- Plating, Electroless Nickel
- Passivation of corrosion resistant steel
- Nickel Plating (Electrodeposited)
- Plating, Cadmium (Electrodeposited)
- 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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