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 6320-01-592-6248
NSN 6220-01-050-5139
NSN 5915-01-177-3233
NSN 6110-00-378-8458
NSN 5960-01-074-9388
NSN 6240-01-133-8461
NSN 6105-01-625-9636
NSN 6645-01-155-9449
NSN 6135-00-990-1822
NSN 5935-00-958-0003
NSN 6110-01-355-4536
NSN 6320-01-631-7828