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 5910-01-321-9399
NSN 6145-01-430-2784
NSN 5915-01-420-6615
NSN 5945-00-923-4291
NSN 5915-00-920-8986
NSN 6135-00-100-0485
NSN 6650-00-943-4247
NSN 6130-01-106-8942
NSN 6650-00-056-1581
NSN 5960-01-649-1341
NSN 6130-01-499-3197
NSN 6650-01-363-6675