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 5855-00-149-0766
NSN 5915-00-233-6346
NSN 6320-01-239-7647
NSN 6105-01-244-3254
NSN 5999-00-269-5320
NSN 5935-01-156-9899
NSN 5835-00-480-5671
NSN 5935-01-359-0214
NSN 5895-01-069-6874
NSN 6145-00-186-6291
NSN 5990-00-854-8400
NSN 5925-00-345-7746