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 5950-00-967-1719
NSN 6150-01-263-4437
NSN 6650-01-365-7969
NSN 5998-01-114-2097
NSN 5910-00-612-8464
NSN 6145-01-429-8529
NSN 5960-01-446-1266
NSN 5950-01-465-2103
NSN 5855-01-075-1292
NSN 6240-01-054-2289
NSN 5855-00-129-6055
NSN 5999-01-568-2973