MIL-PRF-22885/71C
REQUIREMENTS:
Design and configuration: See figures 1 and 2.
Enclosure design: 1 (unsealed).
Temperature characteristics: -55 C to +55 C.
Vibration grade: 2 (10-500 Hz, 10 g peak).
Operation: See table I.
Illuminated color: W, see table II (translucent white).
Display type: C (white display in both illuminated and nonilluminated condition).
Military part number: See table I.
Luminance: 240 foot lamberts minimum with T-1 submidget flange base, 0.15 25% Mean spherical
candlepower, 5 volt, and .115 ampere lamps. lamps energized at rated voltage.
Plastic: Internal plastic material shall be capable of meeting UL burning rate code 94HB in
accordance with UL-94.
Weight: Switches: 1.9 ounces maximum.
Indicators: 1.7 ounces maximum.
Lamps: Switch shall accept four T-1 submidget flange base, 0.15
25% Mean spherical
candlepower, 5 volt, and .115 ampere lamps.
Legending: Switches shall be provided with clear polyester legend plate .610 .010 inch (15.49
0.25 mm) square by .008 inch (0.20 mm) maximum thick and shall accept engraved or branded legends.
Mounting flange: Stainless steel.
Operating force: Momentary and alternate action switches: 12 to 48 ounces.
Return force: Momentary action switches: 4 ounces minimum.
Contact resistance: .050 ohm maximum initial.
Dielectric withstanding voltage:
Lamp terminals: 250 V rms at sea level.
Electrical ratings: See tables III and IV.
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