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 6110-01-055-6442
NSN 6105-01-413-2238
NSN 6110-00-056-8133
NSN 6650-00-809-1817
NSN 5960-00-615-5828
NSN 6130-00-833-3133
NSN 4140-01-492-6734
NSN 5960-01-419-5421
NSN 5920-00-158-5391
NSN 2925-01-163-6716
NSN 5915-01-646-4034
NSN 4140-01-193-1814