MIL-DTL-55302/161D
REQUIREMENTS
Design and construction:
Dimensions and configurations: See figures 1 through 3.
Mating references: See table I.
TABLE I. Mating references.
Type
Will only mate with Locking method
(see note)
B
P, U, W
None
NOTE: These connectors mate with MIL-DTL-55302/164.
Material:
Insulators: Diallyl phthalate in accordance with ASTM D5948.
Guides and hardware: Brass in accordance with ASTM B36, B16, B124, B453, or B455; nickel
plated in accordance with SAE-AMS-QQ-N-290 or AISI 300 series stainless steel or equivalent in
accordance with ASTM A582, passivated in accordance with SAE-AMS-QQ-P-35.
Plating: Plating in accordance with MIL-DTL-55302 or as noted below.
Mating surface (pin and wire): Gold in accordance with ASTM B488, class 1.27, type II, code C
over nickel in accordance with SAE-AMS-QQ-N-290, 30-150 microinches.
Terminations: Solderable areas (including crimp barrels and wire wrap terminations) shall be gold
in accordance with ASTM B488, type III, code A, class 0.254 minimum thickness or gold in
accordance with ASTM B488, type II, code C, class 0.51 over nickel in accordance with
SAE-AMS-QQ-N-290, 30 to 150 microinches thick. Solderable areas must meet the requirements
of MIL-STD-202, method 208.
All other surfaces: Gold in accordance with ASTM B488, type II, code C, class 0.127 minimum
over nickel in accordance with SAE-AMS-QQ-N-290, 30-150 microinches.
Contact identification: See figure 1.
Contact separation forces:
Minimum force: 0.14 newton (0.50 ounce) with a 0.5800 millimeter (.0228 inch) +0.005, -0.000
diameter pin after being cycled 3 times.
Note: Steel pin test surface roughness to be 0.025 -0.25 micron rms.
Unmating: The maximum force of a connector assembly shall not exceed 0.53 newton (1.90
ounces) multiplied by the number of contact positions.
Mating: The maximum force of a connector assembly shall not exceed 0.70 newton (2.5 ounces)
multiplied by the number of contact positions.
6
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