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 7035-01-534-7074
NSN 6150-01-284-7092
NSN 5925-00-897-7932
NSN 5920-01-032-6471
NSN 5935-01-556-4333
NSN 5930-01-462-6045
NSN 6110-00-233-8121
NSN 6105-01-205-4673
NSN 5855-00-055-1694
NSN 6610-01-546-9693
NSN 5935-01-344-5683
NSN 4140-01-426-8428