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 6105-01-259-8289
NSN 4140-01-055-4705
NSN 6610-01-633-8931
NSN 6320-00-032-4853
NSN 6135-00-840-6451
NSN 5895-00-863-6437
NSN 6130-01-334-9320
NSN 5999-00-081-9413
NSN 5998-00-280-0929
NSN 5835-01-463-2334
NSN 6130-01-044-5436
NSN 2925-01-424-0235