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 6105-01-573-7330
NSN 6110-01-364-0966
NSN 5960-01-599-9821
NSN 5915-01-241-3362
NSN 6110-00-225-9021
NSN 5945-01-285-7740
NSN 6650-00-578-6543
NSN 6220-01-170-2611
NSN 2925-01-336-2820
NSN 5835-01-235-9051
NSN 6135-01-554-1842
NSN 5950-00-639-9675