MIL-DTL-55302/133C
REQUIREMENTS:
Design and construction:
Dimensions and configurations: See figure 1.
Plating:
Contact plating: The plating in the engagement area for .170 inch minimum length from the tip of the
contact shall be gold in accordance with ASTM B488, type II, code C or D, class 1.27, over nickel
plating in accordance with SAE-AMS-QQ-N-290, class 2, 30 to 150 microinches. The plating on the
contact termination end for .170 inch minimum length from the end of the contact shall be tin lead in
accordance with MIL-DTL-55302.
Nonfunctional areas: Any portion of the contact other than the contact mating area or termination
area can be plated in accordance with MIL-DTL-55302.
Contact identification: See figure 1.
Contact separation forces:
Mating and unmating: The maximum mating force, in pounds, shall not exceed a value equal to .25
times the number of contacts, and the withdrawal force, in pounds, shall be a minimum of .025 times
the number of contacts and shall exceed the measured insertion force, when the housing is loaded
with contacts and mating with connector in accordance with MIL-DTL-55302/134.
Contact rating: 3 amperes maximum per contact.
Contact resistance: No individual contact pair shall have a resistance exceeded .020 ohm.
Contact retention: 3 pounds minimum per contact.
Dielectric withstanding voltage:
Sea level: 1,000 volts rms, 50 or 60 hertz.
High altitude: 300 volts rms, 50 or 60 hertz.
Oversize pin exclusion: Not applicable.
PIN: See figure 1.
Previous note: Marginal notations are not used in this revision to identify changes with respect to the previous issue
due to the extent of the changes.
Referenced documents. In addition to MIL-DTL-55302, this document references the following:
MIL-DTL-55302/134
MIL-DTL-55302/158
ASTM B488
SAE-AMS-QQ-N-290
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