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 6240-01-141-3625
NSN 6135-00-062-5080
NSN 5895-01-502-5600
NSN 5999-01-083-1371
NSN 5935-01-598-1266
NSN 5915-01-527-2088
NSN 5930-00-808-8262
NSN 5925-00-364-7969
NSN 5895-01-145-5358
NSN 5999-00-153-0062
NSN 5855-01-398-0090
NSN 6135-01-398-5922