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 6110-00-542-2202
NSN 5930-01-142-8304
NSN 6105-01-245-1298
NSN 6650-00-578-6543
NSN 2925-01-290-8208
NSN 4140-00-020-9768
NSN 5935-01-252-3294
NSN 5965-01-151-0903
NSN 5975-01-398-9128
NSN 5910-01-607-8212
NSN 5990-00-087-6177
NSN 6135-01-322-4655