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 6130-01-036-6591
NSN 7035-01-486-4118
NSN 6105-01-095-0518
NSN 6130-01-317-7124
NSN 5925-00-192-9630
NSN 7035-01-158-7673
NSN 5950-01-647-0563
NSN 5990-00-704-1643
NSN 6110-00-916-4625
NSN 5920-01-586-2174
NSN 6650-01-423-8131
NSN 6685-00-857-4898