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 6620-01-406-2755
NSN 5945-01-199-8696
NSN 6650-01-334-7768
NSN 6220-01-004-3365
NSN 6240-01-202-2492
NSN 6105-00-519-0941
NSN 5930-01-419-9482
NSN 6650-01-526-2745
NSN 6145-01-482-0481
NSN 4140-00-760-5672
NSN 5835-00-489-4513
NSN 5930-00-363-6599