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 5935-00-816-9565
NSN 6650-00-773-2030
NSN 5895-01-353-3954
NSN 5998-00-288-5533
NSN 7035-01-254-3606
NSN 7035-01-449-1846
NSN 5925-01-603-7738
NSN 5935-00-831-3539
NSN 5999-01-224-6651
NSN 6135-00-519-1325
NSN 6135-01-629-3346
NSN 5935-00-259-2750