MIL-DTL-55302/126D
REQUIREMENTS
Design and construction:
Dimensions and configurations: See figure 1.
Material:
Body: In accordance with MIL-C-55302.
Plating: Contact plating shall be gold in accordance with MIL-DTL-55302 over nickel in accordance
with MIL-DTL-55302 in the contact engagement area for .100 inch minimum length. The termination
area plating shall be tin lead in accordance with MIL-DTL-55302 over nickel in accordance with MIL-
DTL-55302 for .250 inch minimum length.
Contact identification: See figure 1.
Contact rating: 1.5 amperes per contact, maximum.
Operating temperature: -65°C to +125°C.
Keying: See MIL-DTL-55302/31.
Mating and unmating: The maximum mating force in pounds shall be the number of contacts
multiplied by .30 and the withdrawal force in pounds shall be a minimum of .03 times the number of
contacts and shall not exceed the measured insertion force.
Contact engagement and separation force:
Engagement force: Maximum force to engage maximum test pin .0190 inch + .0000, -.0001
diameter shall be 6 ounces.
Separation force: Minimum force to extract minimum test pin .0170 inch + .0001, -.0000 diameter
shall be .10 ounce.
Contact resistance: The average contact resistance of all contacts measured shall not exceed .025
ohm, and no individual contact pair shall have resistance exceeding .030 ohm.
Contact retention: .75 pound, minimum.
Dielectric withstanding voltage:
Sea level: 450 volts rms.
High altitude: 150 volts rms.
Solderability: Each connector shall be subjected to method 208 of MIL-STD-202 (solder termination
only) (applicable to qualification and retention of qualification only).
Part or Identifying Number (PIN): M55302/126-01.
Patent number 3,404,367. The Government has a royalty free license under this patent for the benefit
of manufacturers of the item either for the Government or for use in equipment to be delivered to the
Government.
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