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 5999-01-597-3622
NSN 6135-01-167-7604
NSN 6110-00-494-3056
NSN 5990-00-510-2098
NSN 6240-01-081-4122
NSN 7035-00-937-4970
NSN 5998-01-096-1185
NSN 5975-00-528-9774
NSN 5965-01-140-5555
NSN 5905-00-229-9492
NSN 5999-00-222-5993
NSN 6650-01-491-0246