National Stock Number:
6650-01-448-4996
Federal Supply Class:
6650
National Item Identification Number:
014484996
Description:
SPOTTING INSTRUMENT,OPTICAL
Detail:
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.
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