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 5965-01-081-7838
NSN 5945-00-229-4546
NSN 5965-01-012-1065
NSN 6110-01-051-0951
NSN 5905-01-598-7717
NSN 5990-01-612-5323
NSN 5920-01-367-2542
NSN 6650-01-354-5917
NSN 5996-00-278-5193
NSN 6620-01-100-2530
NSN 5998-01-551-5067
NSN 5965-00-639-6621