4933-00-723-8963 (7238963)
NSN 4933-00-723-8963 (NIIN 00-723-8963) is a muzzle bore sight in Federal Supply Class 4933, Weapons Maintenance And Repair Shop Specialized Equipment — a sighting device consisting of (1) a string and a web belt which is attached to the outside of the muzzle end of the tube, or (2) a disk. Manufacturer part number 7238963 (Army, United States Department Of, CAGE 19204).
NIIN assigned January 1963; DEMIL B (USML, demil required); ships at 0.01 lb / 0.0006 cu ft.