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 5999-01-505-6096
NSN 6650-01-381-3542
NSN 6645-01-167-5814
NSN 6620-01-169-9470
NSN 6150-01-502-9102
NSN 5930-00-050-5806
NSN 6320-01-261-5983
NSN 6145-01-177-1842
NSN 5855-01-484-6507
NSN 6610-00-186-8229
NSN 4140-00-996-2248
NSN 5915-01-073-4482