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 5999-01-411-7632
NSN 2925-00-698-4882
NSN 7035-00-890-7649
NSN 6650-01-535-9190
NSN 6110-01-565-5333
NSN 5990-01-322-9781
NSN 5960-01-264-2087
NSN 6110-01-553-3124
NSN 5998-01-125-8153
NSN 6110-01-322-6428
NSN 6620-00-701-1283
NSN 5965-01-248-4892