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 6130-00-423-5349
NSN 6110-00-949-9658
NSN 6130-00-141-3541
NSN 5990-01-049-3695
NSN 6620-01-357-0757
NSN 6135-00-266-9762
NSN 6650-01-088-3134
NSN 5935-01-124-3543
NSN 5905-01-513-8881
NSN 5925-00-353-0307
NSN 5990-00-108-5400
NSN 7035-01-068-3300