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 6620-00-481-4210
NSN 5999-00-197-8792
NSN 5990-01-485-0260
NSN 5915-00-221-2391
NSN 6240-00-266-6258
NSN 5960-01-328-8248
NSN 2925-01-582-5834
NSN 5975-00-725-6860
NSN 6150-01-196-6073
NSN 5965-01-601-1060
NSN 6135-00-405-1989
NSN 5905-01-164-4029