MIL-DTL-55302/75D
Requirements:
Dimensions and configuration: See figure 1 and table II.
Material: In accordance with MIL-DTL-55302.
Plating: In accordance with MIL-C-39029/57.
Contact identification: Contact locations are identified numerically as shown on figure 2.
Mating and unmating: The maximum mating force, in pounds, shall be 0.5 times the number of contacts, and the
withdrawal force, in pounds, shall be a minimum of 0.08 times the number of contacts and shall not exceed the
measured insertion force.
Contact engagement and separation forces: When tested as specified herein, the engaging and separation forces
shall be within the applicable limits specified in table I. Cylindrical steel or tungsten carbide test pins having
spherical tips and a surface finish not exceeding 3 microinches roughness for steel pins or 10 microinches for
tungsten carbide pins shall be engaged with and separated from the socket contacts. The forces necessary to
insert the maximum diameter pin and withdraw the minimum diameter pin shall be measured and shall meet the
requirements specified in table I. The depth of insertion shall be not less than 0.205 inch measured from the face
of the insert or 0.140 inch measured from the end of the socket body, but the pins shall not bottom in the socket.
TABLE I. Engaging and separating forces.
Minimum
Separating test
Maximum
Engaging test
Mating
separation
pin diameter
engagement
pin diameter
end
force
in inches
force
in inches
size
(ounces)
(ounces)
+0.0002
+0.0000
22
0.0305
12
0.0295
0.75
-0.0000
-0.0002
Contact resistance: With a test current of 3 A dc, the average resistance of all contact pairs measured shall not
exceed 0.010 ohm, and no individual contact pair shall have a resistance exceeding 0.020 ohm.
Oversize pin: The connectors shall exclude a .038 minimum diameter pin.
Dielectric withstanding voltage:
Sea level: 1,300 volts rms, 60 Hz, ac.
High altitude: 325 volts rms, 60 Hz, ac.
Current rating: 3.0 amperes.
Insert arrangement: See figure 2.
High potential voltage: 1,300 V rms, at sea level.
Mating connectors: See MIL-DTL-55302/74.
Contact insertion and removal tool: M81969/14-01.
Quality conformance inspection:
Group A inspection: Delete mating and unmating.
Group B inspection: Add mating and unmating.
5
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business