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 6650-00-964-9470
NSN 6110-00-719-7209
NSN 6150-01-253-4501
NSN 6650-01-606-2277
NSN 6320-01-072-2073
NSN 5910-01-273-5451
NSN 6105-01-188-7292
NSN 5925-01-505-8633
NSN 6110-00-351-4627
NSN 5998-01-331-2983
NSN 6105-01-085-0989
NSN 5935-00-548-5440