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 7035-01-442-7947
NSN 6105-00-539-0393
NSN 5915-01-062-5181
NSN 5835-00-632-8621
NSN 5920-01-576-9869
NSN 5925-00-941-0317
NSN 7035-01-291-1770
NSN 5999-01-528-3002
NSN 5996-01-386-2843
NSN 5996-01-619-4966
NSN 5920-01-634-0250
NSN 6145-01-060-4689