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 6320-01-382-9676
NSN 5895-01-632-5783
NSN 5905-00-311-2356
NSN 5996-01-421-4761
NSN 5835-01-331-5735
NSN 5950-01-144-5555
NSN 4140-01-126-7368
NSN 6650-01-580-7478
NSN 5996-01-338-2998
NSN 6220-01-298-2593
NSN 5965-00-518-0958
NSN 5950-00-572-2213