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 5965-01-231-5047
NSN 5985-01-519-3784
NSN 6220-00-446-7626
NSN 5965-00-055-8013
NSN 5965-01-432-7134
NSN 6320-00-242-3300
NSN 6645-01-365-8020
NSN 6105-01-395-5234
NSN 5999-00-860-5902
NSN 6150-01-311-5617
NSN 5910-01-525-8184
NSN 6105-01-535-7921