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 6105-00-619-3377
NSN 7035-01-408-8698
NSN 5910-01-174-8754
NSN 6135-01-022-5427
NSN 6145-01-038-5971
NSN 5999-01-512-1696
NSN 6620-01-222-8820
NSN 6110-00-808-8373
NSN 5920-01-406-6637
NSN 5990-01-240-7288
NSN 6320-01-513-9166
NSN 4140-01-564-9705