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 7035-00-205-1932
NSN 5999-00-164-1653
NSN 6130-01-398-0440
NSN 5999-00-150-8792
NSN 5915-01-546-6653
NSN 6240-01-203-4992
NSN 5905-00-268-2535
NSN 6220-00-358-9580
NSN 5985-01-043-0141
NSN 2925-00-982-0409
NSN 5855-01-297-1886
NSN 6650-01-505-5531