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 6105-01-332-7052
NSN 5996-00-909-2104
NSN 6145-01-597-8006
NSN 6110-01-116-2353
NSN 6650-01-251-3370
NSN 4140-01-366-0336
NSN 5910-01-154-0233
NSN 6645-01-055-5465
NSN 5835-01-248-0563
NSN 5835-01-116-2369
NSN 6220-01-241-4625
NSN 6130-00-766-9448