No other part numbers with same form, fit, and function found.
A telescope whose line of vision is 180 degrees from the eye.
NSN 5835-01-043-1576
NSN 4140-01-551-1992
NSN 6150-01-621-7784
NSN 6620-00-777-3481
NSN 5920-01-189-9128
NSN 5998-01-247-8850
NSN 5935-00-272-3520
NSN 6650-00-107-4417
NSN 5985-00-833-7115
NSN 6145-00-918-3187
NSN 5935-00-187-0006
NSN 5835-00-256-5558