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 6105-01-170-7673
NSN 6135-01-606-7024
NSN 6105-01-332-3635
NSN 4140-01-189-7899
NSN 5855-01-349-8583
NSN 5960-01-249-4550
NSN 6320-01-574-1915
NSN 7035-00-834-2090
NSN 6620-00-185-1671
NSN 6685-01-333-1744
NSN 5998-01-329-6253
NSN 5965-00-228-8336