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 5975-01-657-4054
NSN 5920-01-390-6318
NSN 6150-00-253-6554
NSN 6105-01-485-9902
NSN 6130-00-255-0171
NSN 5965-01-186-0329
NSN 5975-01-542-9444
NSN 5965-00-854-2075
NSN 7035-01-359-7460
NSN 5996-00-178-1016
NSN 5835-01-394-7589
NSN 5930-01-113-7221