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 5996-01-588-7784
NSN 5990-01-065-0492
NSN 6105-01-599-7746
NSN 5835-01-121-2098
NSN 7035-01-482-1356
NSN 5915-00-528-9286
NSN 5930-01-050-9346
NSN 5855-00-149-0766
NSN 6650-01-550-7828
NSN 5965-01-659-5671
NSN 5960-01-023-8800
NSN 6220-00-314-1751