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 5975-00-818-3819
NSN 6105-01-293-4788
NSN 5998-01-316-7886
NSN 5915-01-430-4599
NSN 5998-01-427-1087
NSN 5945-00-770-9418
NSN 5895-01-017-9222
NSN 5985-01-153-2657
NSN 6320-01-230-8444
NSN 6650-01-523-7026
NSN 6135-00-255-1340
NSN 5965-01-082-3757