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 5930-01-294-8268
NSN 5965-00-368-8204
NSN 5920-00-378-1395
NSN 5998-00-878-1077
NSN 6135-01-504-4309
NSN 6610-01-444-4001
NSN 5965-00-083-8157
NSN 5965-00-568-5802
NSN 6110-00-222-8955
NSN 6645-00-244-0359
NSN 6130-01-043-4066
NSN 6685-00-997-2719