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 5985-00-677-8336
NSN 6220-01-435-6297
NSN 6240-00-964-8864
NSN 5910-01-497-5163
NSN 5999-01-612-1596
NSN 5915-00-960-4786
NSN 5945-01-507-1765
NSN 6650-00-150-6885
NSN 4140-00-551-3151
NSN 7035-01-613-8030
NSN 5895-00-948-3808
NSN 5920-00-495-6663