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 5935-01-462-0217
NSN 6320-01-148-8125
NSN 5910-00-414-3416
NSN 7035-00-919-3381
NSN 6650-01-653-7714
NSN 2925-00-398-0253
NSN 5935-01-503-3791
NSN 6220-00-075-2364
NSN 5935-00-161-7400
NSN 6150-00-646-7923
NSN 5895-00-964-8989
NSN 6135-01-609-0843