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 5998-00-467-7276
NSN 5935-01-170-4417
NSN 5945-01-479-7773
NSN 2925-01-461-4347
NSN 5998-00-859-8578
NSN 6650-01-603-8177
NSN 6145-00-071-4937
NSN 6105-00-960-0072
NSN 5990-00-100-6643
NSN 6220-01-515-8722
NSN 5925-01-119-3429
NSN 5920-01-449-1793