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 5990-00-754-5253
NSN 5935-01-542-8708
NSN 5915-01-629-1907
NSN 6320-00-116-3658
NSN 6105-01-152-1510
NSN 5950-00-518-1674
NSN 2925-01-285-7163
NSN 5835-01-544-9670
NSN 6145-00-164-8669
NSN 6130-00-354-9851
NSN 5895-01-199-0147
NSN 5965-01-605-1753