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 6650-01-566-1573
NSN 6610-01-212-9817
NSN 5945-00-235-9110
NSN 5915-00-133-2847
NSN 6240-01-023-7720
NSN 6220-01-498-1369
NSN 6610-01-300-8383
NSN 5960-01-361-6543
NSN 6105-00-926-7958
NSN 5895-01-546-9039
NSN 5998-01-575-5274
NSN 5999-01-337-5896