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 5996-01-377-3743
NSN 6105-01-217-4189
NSN 4140-01-344-2674
NSN 5945-01-135-6314
NSN 6320-01-033-6624
NSN 6150-01-209-9038
NSN 5915-00-922-1629
NSN 7035-00-167-7411
NSN 6240-01-180-3720
NSN 6320-01-449-1014
NSN 2925-01-492-5342
NSN 5960-01-132-2975