An item having a rim, edge or collar for keeping it in place. it is designed specifically to be used on machine guns and the like.
Classification: Parts and accessories for military rifles of heading 9301
NSN 6650-00-960-5040
NSN 5960-01-106-3086
NSN 5855-00-879-7245
NSN 6620-00-030-7759
NSN 6610-00-767-7686
NSN 6135-00-461-3590
NSN 6145-00-201-1330
NSN 6130-01-116-4014
NSN 5835-00-660-4523
NSN 5925-01-145-9198
NSN 5920-01-139-4384
NSN 5999-00-246-7084