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 6650-00-069-3107
NSN 6650-01-423-6313
NSN 6105-00-124-8843
NSN 5910-01-045-6606
NSN 5910-01-361-7077
NSN 6650-01-371-5886
NSN 5998-01-256-7936
NSN 5965-01-633-8849
NSN 7035-00-523-7492
NSN 6135-00-262-6807
NSN 7035-01-651-8318
NSN 5960-01-193-5224