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 6130-01-648-2672
NSN 5960-01-124-8336
NSN 5835-00-632-8621
NSN 6650-01-415-2238
NSN 6220-01-192-5423
NSN 5975-01-102-0395
NSN 5935-01-339-6454
NSN 5935-01-444-0144
NSN 5998-01-308-5023
NSN 5920-01-559-7554
NSN 5965-00-191-6788
NSN 5996-00-425-7481