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 6220-01-543-0666
NSN 6620-01-194-1081
NSN 6620-00-193-0518
NSN 6105-00-017-3448
NSN 6650-01-200-7657
NSN 5945-00-367-4106
NSN 5996-00-428-8130
NSN 6220-01-063-7287
NSN 6650-01-005-8570
NSN 6650-01-288-8279
NSN 4140-01-439-9457
NSN 6220-01-432-2175