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 6240-00-299-9819
NSN 6150-00-146-7964
NSN 6150-01-015-9528
NSN 6685-01-467-8789
NSN 6320-01-607-1491
NSN 6150-01-062-1924
NSN 5835-01-126-2480
NSN 6620-01-348-8256
NSN 6150-01-426-6729
NSN 5998-01-178-2843
NSN 5915-00-933-5658
NSN 5910-00-454-8260