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 6610-00-482-1081
NSN 5960-01-031-7992
NSN 6220-00-460-4770
NSN 5999-00-283-8297
NSN 4140-01-257-1089
NSN 5965-00-223-6354
NSN 5945-01-608-3738
NSN 6145-01-073-8859
NSN 5895-00-100-4877
NSN 5920-00-231-2781
NSN 5960-01-009-5400
NSN 5935-01-038-5435