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 5998-00-137-0469
NSN 5895-01-627-2688
NSN 5975-01-251-5331
NSN 6135-01-471-7325
NSN 6105-01-429-9549
NSN 6130-00-836-3636
NSN 6130-01-573-2200
NSN 6650-01-633-9147
NSN 5915-01-193-3213
NSN 5965-01-158-4187
NSN 5920-01-591-9425
NSN 5905-01-298-9897