MIL-DTL-12883F
4.7.6 Contact resistance (see 3.5.5). The contact resistance between each contact and the respective
pin of the applicable contact-resistance test gauge (see appendix) shall be tested in accordance with
method 3004 of MIL-STD-1344. After testing sockets shall meet the requirements of 3.5.5. The following
details shall apply:
a. The contacts shall be mated and unmated a maximum of three times before making the
measurement.
b. The contact resistance shall be read while drawing the specified maximum rated current (see 3.1),
through the contact and pin.
c. There shall be no soldering to the contact tabs for this test.
4.7.7 Torque (when specified) (see 3.5.6).
4.7.7.1 Sockets with bushings or tapped extruded holes (see 3.5.6.1).
a. A twisting force equal to the specified force (see 3.1) shall be applied to the bushing or tapped
extruded hole with a torque wrench, or equivalent.
b. To perform the test, a hardened-steel stud with one end having a .138-32 NC-2A thread, .250 inch
(6.35 mm) long, shall be engaged in the chassis end of the bushing or tapped extruded hole, and
the twisting force shall be applied through the stud.
c.
The shoulder of the stud bearing against the saddle of the socket under test shall not exceed
.187 inch (4.75 mm) diameter.
d. After testing sockets shall meet the requirements of 3.5.6.1.
4.7.7.2 Sockets with molded-in, threaded mounting studs (see 3.5.6.2).
a. A twisting force equal to the specified force (see 3.1) shall be applied to the stud with a torque
wrench, or equivalent.
b. The torque shall be applied through a threaded test adapter (see appendix).
c.
The socket shall be supported in such a manner as to not apply outside forces to the socket
flanges in which the studs are molded. Care must be exercised not to apply forces, other than
twisting, to the stud.
d. After testing sockets shall meet the requirements of 3.5.6.2
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