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 6105-01-634-0322
NSN 6610-01-118-7577
NSN 5895-00-447-0217
NSN 5998-01-391-0959
NSN 6650-01-289-3901
NSN 6650-00-518-2962
NSN 4140-01-169-3960
NSN 5935-01-575-0733
NSN 6320-01-183-8196
NSN 6145-01-633-3558
NSN 6610-01-244-7192
NSN 5965-01-314-7333