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 5935-01-553-8099
NSN 5920-01-534-4942
NSN 6220-01-099-3429
NSN 6645-01-571-6404
NSN 5999-01-368-7867
NSN 6240-01-474-6914
NSN 5905-01-383-8429
NSN 6110-00-248-7475
NSN 6240-01-104-5085
NSN 6650-00-244-5648
NSN 5905-01-235-3143
NSN 7035-00-300-3208