MIL-PRF-62420A, PERFORMANCE SPECIFICATION: PERISCOPE, TANK (23-JAN-1997) [SUPERSEDING MIL-P-62420] [S/S BY MIL-DTL-62420B]

MIL-PRF-62420A, PERFORMANCE SPECIFICATION: PERISCOPE, TANK (23-JAN-1997) [SUPERSEDING MIL-P-62420] [S/S BY MIL-DTL-62420B]., This specification covers the laser protected tank periscope assemblies. Unless otherwise specified herein, these items will be referred to as “periscopes”. These periscopes are used as unity vision devices in combat type vehicles.