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 5998-01-054-1428
NSN 5920-01-634-0250
NSN 5998-01-424-2651
NSN 7035-01-005-2426
NSN 5920-01-522-6363
NSN 5855-01-358-1939
NSN 6130-01-568-0814
NSN 7035-01-462-5766
NSN 6105-01-511-4771
NSN 5925-01-297-1271
NSN 5960-01-303-5884
NSN 5925-00-191-6185