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 5895-00-855-7434
NSN 6240-01-378-4417
NSN 5990-00-382-5885
NSN 5998-01-441-2307
NSN 6610-00-388-9188
NSN 5905-01-651-4821
NSN 6620-01-034-7636
NSN 5999-00-816-9670
NSN 6320-00-242-3300
NSN 6135-00-050-7189
NSN 5960-00-519-9880
NSN 6110-01-632-3208