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 6130-01-185-3042
NSN 6145-01-391-7733
NSN 5925-01-358-8780
NSN 6610-01-290-2627
NSN 5915-00-518-4656
NSN 5975-01-147-4781
NSN 6220-01-280-8458
NSN 5975-00-181-5825
NSN 5945-00-227-7030
NSN 6650-01-600-4843
NSN 5905-01-179-5251
NSN 5945-01-062-0206