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 5920-01-432-7962
NSN 5895-01-424-7799
NSN 6105-00-707-7498
NSN 6110-00-806-3151
NSN 6685-01-360-0374
NSN 6645-00-287-9192
NSN 2925-01-032-3814
NSN 6220-00-269-8396
NSN 5999-01-259-2055
NSN 6320-00-238-9973
NSN 6610-01-023-1812
NSN 5835-01-268-1924