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 6110-00-288-4179
NSN 6130-01-347-3620
NSN 5965-01-241-0553
NSN 5935-01-542-7362
NSN 5895-00-437-7276
NSN 5915-01-389-4377
NSN 6105-01-291-8672
NSN 5985-01-136-6654
NSN 5935-01-245-4851
NSN 5930-01-359-5207
NSN 5945-01-278-1932
NSN 5835-01-351-3425