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 6135-01-594-6107
NSN 6220-00-949-8316
NSN 5855-00-631-4565
NSN 5835-00-489-6668
NSN 5855-00-586-6255
NSN 6610-01-257-5808
NSN 5945-01-550-5335
NSN 2925-01-381-5307
NSN 6650-01-421-6957
NSN 6135-01-357-0621
NSN 6620-01-067-8336
NSN 6130-00-735-7321