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 6645-00-321-6071
NSN 5930-01-157-5014
NSN 6110-01-565-8107
NSN 6610-01-174-1622
NSN 5855-01-641-2736
NSN 5915-01-133-3683
NSN 6110-00-549-6662
NSN 5935-01-547-9024
NSN 5985-00-165-3606
NSN 2925-00-343-3235
NSN 5975-01-174-8152
NSN 5960-01-481-3722