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 7035-00-117-0418
NSN 6135-00-299-6918
NSN 6685-00-822-9465
NSN 6620-01-449-2730
NSN 5990-01-205-5937
NSN 5935-01-046-5421
NSN 6610-01-040-6610
NSN 5990-01-465-3088
NSN 5935-00-898-1848
NSN 5996-01-151-2452
NSN 6650-00-754-2276
NSN 6130-01-634-0603