MIL-PRF-22885/111B
Type IV switch bodies include a mounting sleeve, two panel mounting spacers, and CTS
module/receptacle. See figure 3.
Type V switch bodies include a mounting sleeve, two panel mounting spacers, dripproof panel seal,
and CTS module/receptacle. See figure 3.
Type VI switch bodies include a mounting sleeve, panel mounting spacer, splashproof/watertight seal,
seal retainer, gasket, and CTS module/receptacle. See figure 4.
Pushbutton: All pushbutton assemblies include a display faceplate and legend assembly, display segment
divider, nonreplaceable LED lamps, lamp contact board assembly, pushbutton faceplate seal, retainer/
bezel, and optional captive pushbutton retainer.
Other parts, when applicable, are NVIS compatible lighting, EMI/RFI shielding, and dripproof or
splashproof/watertight seals.
Enclosure designs:
Symbol
Switch type
1 (unsealed)........................................... I and IV
2 (dripproof)........................................... II and V
3 (watertight) and 4 (splashproof)......... III and VI
Temperature characteristic: Symbol 1 (-55°C to +85°C).
Vibration grade: Symbol 3 (10 to 2,000 Hz, 15 g peak).
Operation:
Symbol A (momentary action).
Symbol B (alternate action).
Symbol H (indicator light).
Display types:
N (Legend is white on nonreflective matte black background when LED light is not lighted. Legend is
colored on black background when LED is lighted).
W (Legend is opaque black on white background when LED lamp is not lighted. Legend is opaque black on
colored background when LED is lighted).
S (Sunlight readable contrast requirements apply. Background is nonreflective matte black. Legend is not
visible when LED is not lighted. Legend appears in color on black background when LED is lighted).
H (Hidden legend. Same as display type S except contrast requirements do not apply).
Material:
Finish: When used, shall be selected to enable the switch to meet performance requirements of this
specification. It may be Aluminum alloy black anodized per MIL-A-8625, Type II, Class 2.
Operating characteristics:
Actuating force: 5 pounds max.
Plunger travel: .130 ±.030.
Pushbutton removal force: 2 to 5 pounds. Not applicable to type III or type VI (sealed) switches.
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