MIL-PRF-8805/40K
REQUIREMENTS:
Dimensions and configurations: See figure 1 and table I.
Enclosure design: 4 (resilient). All entrances to the switch cavity except through the actuator bushing
shall be sealed by fusion of glass-to-metal, metal-to-metal, ceramic-to-metal, or other materials that
enable the switch to meet the performance requirements of this specification. The lead wires shall be
potted to provide stress relief.
Temperature characteristic: 1 (-55°C to +85°C).
Shock type: M (100 g's).
Vibration grade: 2 (10 to 500 Hz).
Maximum weight with leads:
MS24331-1: .46 pound.
MS24331-2: .77 pound.
MS24331-3: .62 pound.
MS24331-4: .84 pound.
MS24331-6: .60 pound.
Operating characteristics:
Actuating force: 9 ±3 pounds.
Full overtravel force: 30 pounds maximum.
Release force:
MS24331-1: 4 pounds minimum.
MS24331-2, MS24331-3, MS24331-4, and MS24331-6: 5 pounds minimum.
Note: MS24331-1, MS24331-2, MS24331-3, MS24331-4, and MS24331-6 were superseded by
MIL-PRF-8805/40, the MS24331 Part Numbers (PINS) were retained.
Pretravel: .070 inch maximum.
Movement differential:
MS24331-1: .020 inch maximum.
MS24331-2, MS24331-3, and MS24331-6: .035 inch maximum.
MS24331-4: .045 inch maximum.
Overtravel: .250 inch minimum.
Coincidence of operating and releasing points: All circuits shall transfer within .010 inch of plunger
travel after first circuit transfers.
Strength of actuating means: 30 pounds.
Finish: Switch housing shall be processed to resist corrosion.
Contact resistance: Not applicable.
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