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 5985-01-416-2956
NSN 6150-01-154-9686
NSN 6650-00-738-5418
NSN 4140-01-484-9108
NSN 5985-01-521-4345
NSN 5998-01-362-1909
NSN 6130-00-893-4612
NSN 5999-01-471-1298
NSN 4140-01-239-7508
NSN 5910-01-145-0958
NSN 6240-01-401-5340
NSN 5998-01-023-2949