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 6130-01-299-5536
NSN 5915-01-467-4468
NSN 5930-01-547-4979
NSN 6110-01-438-2604
NSN 6645-00-004-8628
NSN 7035-00-295-0451
NSN 5855-01-323-5394
NSN 5990-01-100-7231
NSN 2925-00-831-7024
NSN 5855-00-446-5921
NSN 6650-01-485-3444
NSN 5950-01-293-5074