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 6110-01-485-0276
NSN 6105-01-399-0695
NSN 2925-01-016-3111
NSN 6145-00-188-3657
NSN 6320-01-098-2503
NSN 6220-01-482-6113
NSN 6610-00-727-9918
NSN 6610-00-367-9603
NSN 6130-01-212-3445
NSN 5960-01-113-4839
NSN 6320-00-174-1362
NSN 6610-00-490-9514