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 6130-00-383-0537
NSN 6620-00-553-8988
NSN 7035-01-312-5860
NSN 5945-00-289-3715
NSN 5905-01-634-0595
NSN 5990-01-044-1271
NSN 5998-01-290-3913
NSN 5998-01-206-6043
NSN 5835-01-384-3206
NSN 6105-01-380-0647
NSN 6320-00-468-8421
NSN 6105-00-134-0827