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 5930-01-328-8510
NSN 5950-01-542-9972
NSN 5945-01-111-8361
NSN 6650-01-028-7024
NSN 6130-01-250-1274
NSN 5910-01-197-7358
NSN 6220-01-443-3031
NSN 5930-01-330-9244
NSN 6110-01-132-0163
NSN 6320-01-064-0372
NSN 5960-01-352-0451
NSN 6105-01-607-0381