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: Gaskets,washers & other seals
NSN 5996-01-495-0763
NSN 5965-01-391-1703
NSN 6150-01-418-6030
NSN 6150-00-951-3420
NSN 7035-01-440-8877
NSN 5965-00-925-7314
NSN 6130-01-306-2476
NSN 6110-01-421-2714
NSN 6220-00-964-1042
NSN 6150-00-516-8445
NSN 5998-00-111-3417
NSN 6105-01-035-9190