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 5915-01-083-7464
NSN 6650-00-726-4242
NSN 5855-00-138-2386
NSN 5910-01-336-3222
NSN 5935-01-415-4468
NSN 6650-01-152-9425
NSN 7035-00-727-4068
NSN 6650-01-398-1387
NSN 6645-00-456-2219
NSN 5935-01-099-4991
NSN 6150-01-173-5949
NSN 4140-00-060-1856