An item used for spotting enemy fire, detecting azimuth and deflection errors in bursts of fire for flash ranging, terrestrial and celestial observation, and for accurate measurement of horizontal and vertical angles by the use of reticles. It may have a single or dual optical system(s), utilizing a straight or offset (raised) line of sight. It is supported by a tribrach having a leveling plate with adjusting screws, circular and/or tubular level vials, azimuth and elevation controls, and the like. It may be mounted in a tripod or groundshelf mount, and usually includes accommodations for a light, instrument.
Classification: Military equipments not identified by kind
NSN 5920-01-065-1824
NSN 5905-01-132-8216
NSN 5985-01-352-1325
NSN 5930-01-130-7048
NSN 5930-00-943-1931
NSN 6145-00-901-4478
NSN 6645-01-276-1029
NSN 6145-01-516-3955
NSN 6685-01-420-6480
NSN 5950-01-568-5324
NSN 5935-00-276-9399
NSN 6650-01-577-1304