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 6650-01-459-8575
NSN 5925-01-156-4426
NSN 5930-01-293-0860
NSN 5998-01-051-5135
NSN 6105-00-468-2705
NSN 4140-01-604-8073
NSN 5895-01-053-6273
NSN 5999-01-172-6262
NSN 5975-00-290-4285
NSN 5855-00-797-8217
NSN 5975-01-634-0678
NSN 6650-01-449-2334