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 6105-01-086-2688
NSN 5985-00-807-8250
NSN 6620-00-420-1061
NSN 6220-00-754-3452
NSN 5910-01-180-7148
NSN 6145-00-814-8128
NSN 6220-00-419-0635
NSN 5998-00-004-3839
NSN 5925-00-455-8584
NSN 5935-01-614-4652
NSN 5965-01-116-1886
NSN 6130-01-424-1217