MIL-DTL-3950J
4.8.5 Strength of terminals (see 3.6.4). Switches shall be mounted by their normal mounting means.
Two terminals on each switch shall be tested (see figure 1). However, a terminal shall be tested only
once in one direction.
4.8.5.1 Solderable terminals. Solderable terminals shall be tested in accordance with method 211 of
MIL-STD-202. The following details and exceptions shall apply:
a. Test condition letter - A.
b. Applied force - 5 pounds.
c.
Direction of applied force:
(1) With the terminals vertical and pointing downward, the specified pull shall be applied directly
downward.
(2) With the terminals horizontal, the specified pull shall be applied directly downward.
4.8.5.2 Screw-lug terminals. Screw-lug terminals shall be tested in accordance with method 211 of
MIL-STD-202. The following details and exceptions shall apply:
a. Test condition letter - A.
b. Applied force - 25 pounds, except that where 4-40 terminals are used, a 5-pound pull shall be
used.
c.
Direction of applied force
(1) Parallel to the axis of the terminal screw.
(2) Perpendicular to the axis of the terminal screw.
4.8.5.3 Integrated wire terminals. Integrated wire terminals shall be subjected to a 15-pound pull 5
seconds to 10 seconds in the following directions:
a. With the long dimension of terminal contact vertical, and the contact opening facing downward,
specified pull shall be applied directly downward.
b. With the long dimension of the terminals contact horizontal, the specified pull shall be applied
directly downward.
4.8.5.4 Screw-thread terminals. Screw-thread terminals shall be tested in accordance with method 211
of MIL-STD-202, test condition E. The torque shall be applied in the direction which will tighten the
screw.
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