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 5950-01-462-2229
NSN 6650-00-162-0951
NSN 6320-01-338-6006
NSN 5999-01-397-7024
NSN 5905-01-044-6469
NSN 5855-01-147-6024
NSN 5996-01-177-2848
NSN 6240-01-255-2417
NSN 6135-00-452-2266
NSN 6240-00-959-7025
NSN 5975-00-115-8790
NSN 6650-00-925-1274