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 6220-01-324-8617
NSN 5998-00-010-1445
NSN 5895-01-131-7460
NSN 5895-01-112-0484
NSN 7035-01-496-9069
NSN 5998-01-242-1760
NSN 6150-01-073-1006
NSN 4140-01-052-7400
NSN 5965-01-453-4403
NSN 5998-00-614-9202
NSN 5935-00-189-6963
NSN 6320-01-556-2011