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 6145-01-571-7928
NSN 5945-01-594-2332
NSN 5925-01-350-5553
NSN 5905-01-323-6711
NSN 5960-00-057-1588
NSN 6110-01-216-6055
NSN 6130-00-830-5720
NSN 5915-01-317-3541
NSN 5998-01-522-9262
NSN 6650-01-152-0665
NSN 6105-00-104-2750
NSN 2925-01-493-8045