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 5935-01-350-3673
NSN 6150-00-006-0995
NSN 5945-00-435-7801
NSN 6685-01-565-7132
NSN 6135-00-738-5571
NSN 6105-01-106-3221
NSN 5945-00-189-5547
NSN 5945-01-235-6350
NSN 5925-00-519-3657
NSN 6650-01-204-5981
NSN 5998-01-565-3047
NSN 5855-01-013-6864