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 6320-01-607-0347
NSN 6105-01-549-1022
NSN 6105-01-464-3777
NSN 5895-00-288-0158
NSN 6105-01-645-4935
NSN 5985-01-243-1027
NSN 5965-01-303-6105
NSN 5996-00-557-3695
NSN 6320-01-072-2073
NSN 6650-00-730-2995
NSN 5915-00-192-3109
NSN 5835-01-459-8664