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 6220-01-459-6969
NSN 5910-00-489-6972
NSN 6645-00-881-9978
NSN 6685-01-502-9028
NSN 5905-01-239-8217
NSN 5930-00-467-1079
NSN 6685-01-446-5622
NSN 5920-01-593-2489
NSN 5965-01-495-1170
NSN 5985-00-072-8552
NSN 5925-01-318-5330
NSN 6105-01-419-6082