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 6105-00-314-1962
NSN 6240-01-367-8749
NSN 5945-01-327-1757
NSN 5965-01-063-7894
NSN 6150-00-981-2762
NSN 2925-01-354-1752
NSN 5965-01-476-8539
NSN 4140-01-474-5007
NSN 6320-01-332-1977
NSN 5998-00-501-8625
NSN 6610-00-647-3830
NSN 6620-01-317-7352