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 5996-01-317-3676
NSN 5835-01-495-0595
NSN 5996-00-927-7729
NSN 5945-00-278-9482
NSN 5930-01-446-0994
NSN 6130-01-370-4153
NSN 6610-01-353-7075
NSN 6610-00-391-7888
NSN 5998-01-104-5462
NSN 6150-01-231-0457
NSN 5975-01-180-8346
NSN 7035-01-591-2766