MIL-DTL-83731/10D
REQUIREMENTS:
Design and construction: See figures 1 and 2.
Material and finish. Bushings shall be brass, nickel plated. Toggle lever shall be brass, bright
chrome plated. Frame shall be stainless steel. The contacts shall be gold plate over nickel over
silver over brass.
Mounting hardware: Each switch shall be supplied with one hexagon nut, one internal-tooth
lockwasher in accordance with the appendix of MIL-DTL-83731, one locking ring (see figure 3), and
one panel seal (see figure 3). The panel seal shall be silicone rubber, or Buna-N.
Weight: 0.019 pound maximum.
Electrical ratings: See table I.
Strength of terminals: Method 211 of MIL-STD-202,test condition A. The applied force shall be one
pound.
Strength of toggle lever, pivot, and lever stop: Test (a) shall use a ten pound load; test (b) shall be a 8
pound load.
Dielectric withstanding voltage: Test at atmospheric pressure only.
Mechanical endurance: 10,000 cycles at -25°C +0°C, -4°C, and 10,000 cycles at 71° +4°, -0°C.
Electrical endurance, electrical overload, intermediate current, logic level life, and temperature rise.
Multipole switches are to be tested with a load on each pole and with the same polarity on adjacent
poles in accordance with figure 2.
FIGURE 4. Test circuit.
TABLE I. Electrical ratings.
High level (current in amperes)
Logic level
Type of load
28 V dc
125 V ac, 60 Hz
115 V ac, 400 Hz
5 V dc
5
Resistive
5
5
0.010 ampere
2
Inductive
2
2
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Lamp
1
1
1
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4