MIL-DTL-3786/32C
REQUIREMENTS
Dimensions and configuration: See figures 1 and 2.
Construction style: N or S, see table II.
Angle of throw: 15°, 18°, 20°, 22.5°, 25.7°, 30°, 36°, and 45°, (see table III).
Terminals: The terminal tabs shall be bent at an angle of 60 +30, -15 degrees.
Temperature-life characteristic: Symbol B (25,000 cycles, -65°C and 85°C).
Vibration grade: Symbol 3 (10 to 2,000 Hz).
Shock type: Symbol H (high impact).
Insulation material: Symbol P (plastic).
Altitude: Symbol C (70,000 feet).
Rotational torque limits:
1.0 lb-in. minimum, 6 lb-in. maximum at room temperature.
1.0 lb-in. minimum, 8 lb-in. maximum at minimum temperature.
Terminal strength (pull): A force of 2-1/2 pounds shall be applied to the terminals.
Life (rotational): The test loads for the applicable circuit conditions shall be as specified in table I. Each
of the loads, specified for the applicable environmental condition, shall be switched by at least one
rotor contact of the switch.
TABLE I. Electrical loads.
Inductive load
Environmental condition
(2.8 henries)
Resistive load
Milliamperes Volts, dc Milliamperes
Volts
At atmospheric pressure
20
28
200
28 dc
50
115 Vrms
At reduced barometric pressure
---
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100
28 dc
25
115 Vrms
Dielectric withstanding voltage: 750 volts rms at atmospheric pressure; 375 volts rms at reduced
barometric pressure.
Mounting brackets: A switch with more than five section or with more than 3-1/2 inches in length from
the mounting surface may use mounting brackets.
Mounting hardware: Each switch shall be supplied with one hexagon nut in accordance with MS25082,
and one internal-tooth lockwasher in accordance with NASM35333.
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