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 6240-01-216-4060
NSN 5910-01-322-0918
NSN 6135-00-998-5884
NSN 5910-00-518-1477
NSN 7035-00-153-3826
NSN 6620-00-643-1402
NSN 6610-01-406-0147
NSN 6130-01-135-3303
NSN 5915-00-553-8755
NSN 5945-01-559-1918
NSN 6135-00-255-1340
NSN 6110-00-897-4594