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 6105-00-318-5819
NSN 6320-01-551-3553
NSN 6110-00-918-4738
NSN 6105-00-794-3597
NSN 6110-01-091-7827
NSN 6240-00-312-0636
NSN 5895-01-208-3320
NSN 7035-01-641-4634
NSN 5998-01-018-4655
NSN 6620-00-269-8950
NSN 5960-01-495-0859
NSN 5920-01-406-8567