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 6150-01-364-1023
NSN 6110-00-288-4179
NSN 5925-01-390-7621
NSN 4140-01-461-7885
NSN 5950-01-246-6287
NSN 5910-01-210-1665
NSN 7035-01-227-2546
NSN 5950-00-299-7851
NSN 5930-01-219-6974
NSN 6610-01-645-3581
NSN 6145-00-998-7609
NSN 6150-01-566-5735