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 6130-00-375-6299
NSN 5965-01-279-1075
NSN 7035-00-213-2387
NSN 4140-01-514-2319
NSN 5905-00-813-0336
NSN 5999-00-483-1897
NSN 6320-00-194-4252
NSN 5920-01-562-9996
NSN 5915-00-291-3736
NSN 6220-01-650-1897
NSN 5996-01-135-6432
NSN 5996-00-496-8806