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 6240-00-612-0883
NSN 6105-01-569-2462
NSN 5905-00-247-9308
NSN 6610-00-730-5883
NSN 5920-00-555-1877
NSN 7035-01-509-1959
NSN 5965-01-215-0993
NSN 6145-00-227-7576
NSN 6130-01-449-1552
NSN 6105-00-953-2893
NSN 5999-01-605-4523
NSN 6220-01-632-8217