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 5965-00-739-2063
NSN 6650-00-557-0780
NSN 6110-00-782-1174
NSN 6150-01-452-7227
NSN 6645-01-272-3202
NSN 5945-01-369-6958
NSN 5998-01-106-7682
NSN 6645-00-486-8649
NSN 6620-01-504-5756
NSN 5999-01-647-5192
NSN 6240-01-454-7108
NSN 5895-01-149-2622