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 6130-01-580-6485
NSN 5960-01-412-0619
NSN 6135-00-078-9931
NSN 5835-00-711-3371
NSN 5915-01-512-7370
NSN 5996-00-248-4883
NSN 5835-00-233-6327
NSN 6130-01-443-3761
NSN 5910-01-062-7328
NSN 5915-01-609-6955
NSN 5998-01-512-2222
NSN 6620-01-430-2212