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 6105-00-553-8943
NSN 6130-01-554-3629
NSN 6145-00-224-5245
NSN 6105-00-660-8882
NSN 4140-01-123-8801
NSN 2925-01-259-7092
NSN 6135-00-269-5843
NSN 5999-01-201-0693
NSN 5935-00-935-5769
NSN 5910-00-288-5979
NSN 6320-01-461-1390
NSN 5965-01-656-7557