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 5925-01-332-3266
NSN 5925-01-614-1825
NSN 5990-00-642-9930
NSN 5965-01-559-1898
NSN 5990-00-091-7110
NSN 6685-01-655-2594
NSN 4140-01-468-0476
NSN 5960-01-195-6440
NSN 6650-00-820-4577
NSN 6110-01-633-0129
NSN 5999-01-056-4490
NSN 5920-01-429-4631