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 5855-00-878-8137
NSN 6105-01-388-1926
NSN 6130-00-434-4013
NSN 6145-01-381-1303
NSN 6105-01-106-0060
NSN 5999-00-005-5366
NSN 5935-00-225-8448
NSN 6110-01-070-3780
NSN 5998-00-467-5774
NSN 6645-01-550-7391
NSN 6240-00-433-2707
NSN 5905-01-354-9701