MIL-PRF-8805/68L
REQUIREMENTS:
Dimensions and configurations: See figure 1.
Enclosure design: 5 (hermetic). Seal test in accordance with method 112, test condition C, procedure
IV of MIL-STD-202. Gross leak test condition B except water instead of silicone oil.
Temperature characteristic: 2 (-65°C to +125°C).
Shock type: M (100 G, test condition 1, method 213 of MIL-STD-202).
Vibration grade: 3 (10 to 3000 Hz swept sinusoildal). In addition, the specified random vibration
screening requirement is applicable to high reliability parts (PIN's M8805/68-029 through 035).
Materials:
PIN's M8805/68-022 through 028 (general military usage): In accordance with MIL-PRF-8805.
PIN's M8805/68-029 through 035 (high reliability parts): In accordance with MIL-PRF-8805 with
additional material requirements as specified below:
Outgassing: When tested as specified in ASTM-E595, plastic potting compound, elastomer
seals and marking ink shall meet the following outgassing requirements:
Samples to be tested shall have been processed in the same manner as that used in
production of the qualification lot.
Total mass loss (TML): Shall not exceed 1.0 percent of the initial specimen mass.
Collectable volatile condensable material (CVCM): Shall not exceed 0.1 percent of the
initial specimen mass.
Restricted materials: Cadmium, zinc or pure tin plating shall not be used on any internal or
external parts of the switch. Use of tin-lead (Sn-Pb) finishes are acceptable provided that the
minimum lead content is 3 percent. The use of magnesium alloy is prohibited.
Weight:
Type A: .05 ounce maximum.
Type B: .16 ounce plus .10 ounce per lead per foot maximum.
Type C: .16 ounce plus .10 ounce per lead per foot maximum.
Operating characteristics:
Actuating force: 30 ounces maximum (at standard temperature and pressure, 21°C and 14.7 psia).
Releasing force: 4 ounces minimum (at standard temperature and pressure, 21°C and 14.7 psia).
Movement differential: .005 inch (0.13 mm) maximum.
Pretravel: .009 inch (0.23 mm) maximum.
Overtravel: .002 inch (0.05 mm) minimum.
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