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 6645-01-113-6712
NSN 6130-00-404-7926
NSN 5996-00-674-7084
NSN 6130-01-467-0766
NSN 6650-01-449-8637
NSN 6135-00-782-6988
NSN 5915-00-922-0714
NSN 5935-01-517-2798
NSN 6135-01-434-6308
NSN 5910-00-173-5874
NSN 7035-01-146-7096
NSN 5990-01-580-1707