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 6135-00-196-5267
NSN 5975-01-175-1211
NSN 5945-01-641-8723
NSN 5905-01-133-2171
NSN 5998-00-542-9095
NSN 5990-01-537-1553
NSN 6135-00-057-2005
NSN 5965-01-258-5662
NSN 5930-01-537-4452
NSN 6110-01-526-0516
NSN 5999-01-108-5695
NSN 5965-00-400-6228