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 5965-01-508-2537
NSN 6645-00-580-9605
NSN 5930-01-435-6314
NSN 6130-00-405-2948
NSN 6650-01-381-2972
NSN 5905-01-235-1641
NSN 5935-01-187-0783
NSN 5965-01-612-8098
NSN 5905-01-309-8531
NSN 6110-01-051-2211
NSN 6220-00-344-3189
NSN 6105-01-368-6552