MIL-DTL-83731/9D
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: 0.012 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°C +4°C, -0°C.
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
0.010 ampere
5
5
5
Resistive
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2
2
2
Inductive
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1
1
1
Lamp
Resistive load (dc and ac): Switches shall make and break the rated resistive load for 10,000
operating cycles at room ambient pressure and a temperature of 71°C +4°C -0°C.
Inductive load (dc and ac): Switches shall make and break the rated inductive load for 10,000
operating cycles at room ambient pressure and a temperature.
Lamp load: Switches shall make and break the rated lamp load for 10,000 cycles.
4