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 5996-00-928-6096
NSN 6130-01-164-6752
NSN 6620-00-791-8235
NSN 6135-01-322-4655
NSN 5930-00-125-9336
NSN 5920-01-044-9021
NSN 5975-01-358-1887
NSN 4140-01-167-7574
NSN 5895-01-182-5998
NSN 5930-01-509-3906
NSN 6130-00-446-4044
NSN 5910-01-498-9585