A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Parts of armored fighting vehicles,motorized, whether or not fitted with weapons
NSN 5965-00-076-9561
NSN 5905-01-213-7881
NSN 7035-00-703-3535
NSN 6145-01-572-1557
NSN 6130-00-102-1122
NSN 6145-01-634-0388
NSN 4140-01-375-0532
NSN 6320-00-284-1524
NSN 5985-01-619-8549
NSN 6610-01-345-1110
NSN 6110-01-224-8495
NSN 5990-01-471-0494