No other part numbers with same form, fit, and function found.
A sighting device, usually a disk or segment with a central peephole, so designed to fit in the breech end of the gun tube for the purpose of aligning the sights with the gun.
NSN 6320-00-004-9158
NSN 2925-00-730-3115
NSN 6240-00-344-8582
NSN 5945-01-623-2343
NSN 5910-00-780-5461
NSN 5835-01-189-6095
NSN 5975-01-245-7781
NSN 5925-00-249-1287
NSN 5945-01-659-1863
NSN 5996-01-552-4224
NSN 6145-01-435-7152
NSN 5960-01-370-4285