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 5965-00-236-0016
NSN 6610-00-948-3003
NSN 6650-00-717-8913
NSN 5996-00-788-5906
NSN 4140-01-319-0459
NSN 7035-01-443-3052
NSN 6645-00-503-1379
NSN 6150-00-952-1993
NSN 6150-01-155-8081
NSN 5930-00-338-2926
NSN 6135-01-056-4609
NSN 5910-01-108-7126