MIL-PRF-8805/74L
REQUIREMENTS:
Dimensions and configurations: See figure 1.
Enclosure design: 5 (hermetic). Basic switch shall be hermetically sealed M8805/68-022 listed on
QPL-8805. Resilient plunger seal.
Temperature characteristic: 2 (- 65°C to + 125°C).
Shock type: M (100 g, test condition I, method 213 of MIL-STD-202).
Vibration grade: 3 (10 Hz to 3,000 Hz swept sinusoidal ).
Operating characteristics: see table II.
Actuating force: 6.5 pounds maximum.
Releasing force: 1.5 pound minimum.
Pretravel: .020 inch (0.51 mm) maximum
Movement differential: .005 inch (0.13 mm) maximum.
Overtravel: .125 inch (3.18 mm) minimum.
Contact resistance: .04 ohm + 0.011 ohm per lead per foot.
After electrical endurance: In accordance with MIL-PRF-8805, plus 0.011 ohm per lead per foot.
Dielectric withstanding voltage:
Sea level and 70,000 feet: 1,050 V rms (terminal to case), 800 V rms (terminal to terminal), 500 V
rms after electrical life.
Mechanical endurance: 50,000 cycles.
Electrical endurance: 25,000 cycles
Intermediate current: 25,000 cycles.
Low level: 25,000 cycles.
Electrical ratings: see table III.
Short circuit: 20 times rated resistive load (SAE-AS33201; PIN MS3320-7 ½, or equivalent used for
circuit protection).
Weight: 1.0 ounce plus 0.1 ounce per lead per foot.
Qualification:
Group submission: See table IV.
Military Part or Identifying Number (PIN): See tables I and V.
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