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 6650-01-589-3585
NSN 6105-01-532-0395
NSN 5835-00-922-1263
NSN 5935-00-974-1816
NSN 6105-01-469-3486
NSN 6130-01-115-8438
NSN 6110-01-013-9313
NSN 6105-01-398-1932
NSN 5915-00-425-9852
NSN 6220-01-632-0405
NSN 5895-00-613-2386
NSN 4140-00-699-0904