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 6320-01-052-2118
NSN 5835-01-588-6533
NSN 6645-01-562-7154
NSN 6145-01-143-7498
NSN 6650-01-245-9781
NSN 6135-01-648-4875
NSN 6650-00-717-8913
NSN 6650-00-938-6785
NSN 5999-01-461-3473
NSN 5920-00-140-1492
NSN 6620-00-466-2314
NSN 5998-00-760-5465