MIL-DTL-55302/8F
REQUIREMENTS:
Design and construction:
Dimensions and configurations: See figure 1 and table I.
Material:
Guide pins and guide bushing: Brass composition B, 60,000 to 70,000 psi tensile, in accordance with
ASTM B134/B134M, or FC brass as specified in ASTM B16/B16M.
Plating:
Guide pins and guide bushings: Gold over copper, type II, class 1.27, code C, in accordance with
ASTM B488.
Contact: Gold in accordance with ASTM B488, type II, code C, class 1.27, over nickel plating in accordance
with SAE-AMS-QQ-N-290, class 2, 50 to 150 microinches.
Contact identification: Shall be numerical and sequential in the pattern indicated.
Pin size: 23.
Wire size: 22.
Current rating: 5 amperes, maximum.
Mating and unmating: The maximum insertion force, in pounds shall not exceed a value equal to 0.5 times the
number of contacts.
Contact engagement and separation force: The individual contact withdrawal force shall be .5-ounce minimum
when tested with minimum diameter test pin SAE-AS3197-23X1.
Contact resistance: The average resistance of all contact pairs measured shall not exceed .010 ohm, and no
individual contact pair shall have a resistance exceeding .020 ohm.
Dielectric withstanding voltage:
Sea level: 1,000 volts rms, 60 Hz, ac.
High altitude: 500 volts rms, 60 Hz, ac.
Part or Identifying Number (PIN): M55302/8-(dash number from table I).
CHANGES FROM PREVIOUS ISSUE: The margins of this specification are marked with vertical lines to indicate
where changes from previous issue were made. 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 and relationship to
the last previous issue.
Referenced documents. In addition to MIL-DTL-55302, this document references the following:
MIL-DTL-55302/7
ASTM B488
ASTM B16/B16M
SAE-AMS-QQ-N-290
ASTM B134/B134M
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