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 6130-00-984-3035
NSN 5920-01-540-3428
NSN 5935-01-466-7559
NSN 5935-00-407-2819
NSN 5960-01-552-0862
NSN 6130-00-651-7326
NSN 5950-00-518-4645
NSN 5985-01-574-3189
NSN 6110-00-239-9248
NSN 7035-00-616-4410
NSN 5915-01-588-5998
NSN 6240-00-459-5367