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 5930-01-106-9181
NSN 4140-01-502-6496
NSN 5835-00-929-6623
NSN 5920-01-117-0522
NSN 6145-00-192-3094
NSN 6620-00-523-9437
NSN 5855-01-496-2355
NSN 6105-00-188-8796
NSN 4140-01-011-8707
NSN 5990-01-658-3102
NSN 5945-01-352-5114
NSN 5855-01-357-4335