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 6650-00-650-8080
NSN 5990-01-035-5734
NSN 5999-00-083-9055
NSN 7035-00-392-5417
NSN 6150-01-391-4748
NSN 6110-01-359-1751
NSN 5960-00-178-0968
NSN 6320-01-399-6177
NSN 6130-01-168-8507
NSN 5999-01-036-5755
NSN 5945-00-518-8524
NSN 5950-01-020-7717