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 7035-01-400-3666
NSN 6130-00-707-5931
NSN 6150-01-364-8688
NSN 6145-00-773-6195
NSN 5935-01-234-2340
NSN 6650-01-461-4807
NSN 6650-01-381-7172
NSN 5965-00-815-2525
NSN 6105-01-554-9764
NSN 6110-01-116-4251
NSN 5835-00-792-8438
NSN 6145-01-353-8736