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 5965-00-318-6479
NSN 5965-00-061-1061
NSN 6135-01-537-1234
NSN 6135-01-285-1925
NSN 6135-01-164-3561
NSN 5895-01-360-4868
NSN 6220-01-381-1074
NSN 5998-00-702-5129
NSN 5930-01-058-5278
NSN 6650-00-202-4540
NSN 5985-01-013-0721
NSN 6135-01-095-2556