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 6135-01-508-6083
NSN 5999-01-482-2975
NSN 6220-00-887-2637
NSN 5935-01-069-4696
NSN 6620-01-197-7665
NSN 5999-01-524-0554
NSN 5905-01-462-5086
NSN 6150-00-471-7480
NSN 5998-01-364-0960
NSN 5975-01-543-5828
NSN 5945-00-201-8335
NSN 5905-00-612-0010