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 5895-01-443-6066
NSN 6620-00-338-6482
NSN 5930-01-497-3211
NSN 5895-00-146-7987
NSN 4140-00-616-1347
NSN 5930-01-519-9245
NSN 6620-01-517-0014
NSN 6150-01-459-8026
NSN 6620-01-195-9758
NSN 6620-01-273-7734
NSN 6320-00-539-9283
NSN 6130-01-137-2987