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 5905-01-415-2902
NSN 6105-00-935-8736
NSN 7035-01-382-4413
NSN 5975-00-193-8925
NSN 5935-01-366-1985
NSN 6320-01-481-7322
NSN 7035-01-428-2336
NSN 6320-00-322-3460
NSN 5910-01-525-3725
NSN 5945-00-502-8233
NSN 5925-01-575-4050
NSN 5925-00-615-8777