The helmet sight assembly is a lightweight aluminum visor housing with a magnetic receptacle containing a reed switch attached near the top rear and a sight assembly attached to the front. The aluminum visor housing is precision attached to the SPH-4 helmet when the existing visor cover is removed. For initial installation, an installation kit containing special fasteners and tools and a small visor knob is furnished with each helmet sight assembly.
Manual Reference:
- TM 9-1270-212-14&P
- TM 9-4931-363-14&P
- TM 10-8415-206-12&P
Stock Number Reference:
Helmet Sight Assembly
NSN: 1270-00-578-0536
Assign Date: 1974-12-11
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