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 6150-01-149-1587
NSN 6130-01-584-1294
NSN 5999-01-286-3659
NSN 5835-01-013-1838
NSN 5975-00-148-0914
NSN 6645-00-946-7953
NSN 6240-01-026-6447
NSN 5996-01-576-8172
NSN 6220-01-573-8784
NSN 6220-01-237-5999
NSN 5965-00-464-6191
NSN 5998-01-073-8779