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 5999-00-517-1781
NSN 6220-01-454-4071
NSN 6620-01-534-2370
NSN 6105-01-414-7824
NSN 6650-01-633-6872
NSN 5975-01-157-4305
NSN 6650-00-824-5510
NSN 6650-01-394-0184
NSN 6650-01-211-5628
NSN 5895-01-593-0145
NSN 5835-01-141-4975
NSN 6135-01-597-7685