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 6105-01-634-0322
NSN 5950-01-659-4515
NSN 5965-00-617-5731
NSN 5915-00-050-1307
NSN 2925-01-218-5556
NSN 5960-00-888-7218
NSN 5965-01-364-1083
NSN 5965-00-194-7213
NSN 6240-01-144-5898
NSN 5835-01-268-1924
NSN 5998-01-112-0461
NSN 6130-00-832-2263