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 6610-00-417-4299
NSN 6645-01-589-0983
NSN 5985-01-041-8223
NSN 5990-01-159-5988
NSN 5996-00-242-4384
NSN 6650-00-526-7785
NSN 5930-01-429-9275
NSN 6150-01-396-3092
NSN 5930-00-319-2466
NSN 6220-01-384-4460
NSN 5895-01-318-9487
NSN 5930-01-073-2582