Dimensions and configuration: See figure 1.
Enclosure design: 3 (watertight).
Temperature characteristic: 2 (-65 to +125C).
Shock type: 50 g's, sawtooth, in accordance with method 213, test condition G, MIL-STD-202.
Vibration grade: 1 (10 to 500 Hz).
Weight: 8.25 ounces maximum.
Actuating force: 7.5 2 pounds. 1/
Overtravel force: 16 3 pounds. 1/
Movement differential: .050 inch minimum to .100 inch maximum.
Pretravel: .090 inch to .140 inch.
Overtravel: .281 inch minimum.
Coincidence of operating and releasing points: In switches having more than one moving contact,
the moving contacts shall open and close together within .010 as measured in actuator travel at the
Ferrule: Deep drawn steel gauge number 22 (.031 inch), plated to resist corrosion.
Seal gland: Silicon rubber or equivalent.
Contact resistance: Not applicable.
Mechanical endurance: 100,000 cycles.
Electrical endurance: 100,000 cycles.
Group B: Not applicable.
Part or Identifying Number (PIN): MS27996-1.
Electrical ratings: See table I.
TABLE I. Electrical ratings.
28 V dc
115 V ac, 400 Hz
1/ Force specifications converted from angular to rectangular for ease of inspection.
2/ Military Standard Drawing MS27996 is canceled and superceded by MIL-PRF-8805/53.