MIL-DTL-3786/35E
REQUIREMENTS
Dimensions and configuration: See figure.
Angle of throw: 30°.
Construction styles: Symbols F, J, and K .
Insulation: Symbol P (plastic).
Mounting hardware: Each switch shall be supplied with one corrosion-resistant hexagon, .089 ±.010-
inch thick by .375 inch across the flats and one internal-tooth lock washer, .396/.408 diameter.
Moisture resistance: Insulation resistance measured immediately after conclusion of the moisture
resistance test and while the switches are still in the humidity chamber, shall be greater than 100
megohms. At the end of the drying period, the insulation resistance shall be not less than 5,000
megohms.
Low level: Applicable when specified in the Part or Identifying Number (PIN).
Shaft grounding: Applicable when specified in the PIN.
Temperature-life characteristic: B (25,000 cycles) (-65°C and +85°C).
Vibration grade: 3 (10 to 2,000 Hz).
Shock symbol: B (high and medium impact) .
Altitude: C (70,000 ft).
Terminal strength (pull): A force of 1.5 pounds shall be applied to the terminals.
Terminal markings: Switches may be marked with terminal numbers on side of switch.
Stop strength: Stops shall withstand a force of 7.5 pound-inches.
Flux seal: Applicable when specified in Part or Identifying Number (PIN).
Rotational torque: The torque for shaft rotation shall be within the limits specified in table I.
TABLE I. Rotational-torque limits.
Torque (lb-in)
Temperature
Minimum
Maximum
Room
.5
1.5
Minimum
.5
2.0
Life (rotational): The test loads for the applicable circuit conditions shall be as specified in table II. Each
of the loads, specified for the applicable environmental condition, shall be switched by at least one rotor
contact of the switch.
Dielectric withstanding voltage: The magnitude of test voltage for the dielectric withstanding shall be
600 volts, alternating current (ac) atmospheric pressure, and 250 volts ac at reduced barometric
pressure.
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