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 6650-00-809-1817
NSN 5945-01-406-4352
NSN 5965-01-234-6844
NSN 6610-01-353-4883
NSN 6685-01-612-3748
NSN 5950-01-030-7772
NSN 5835-01-041-0873
NSN 6105-01-508-5937
NSN 5960-01-198-3933
NSN 5999-00-493-1290
NSN 6320-01-259-2604
NSN 4140-01-024-9414