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 5905-01-343-0019
NSN 5998-00-755-1528
NSN 5945-01-265-0238
NSN 6110-01-528-1489
NSN 5945-01-186-0113
NSN 5945-01-220-8642
NSN 5905-01-386-6297
NSN 5835-01-545-2629
NSN 6105-00-204-5497
NSN 5996-00-610-5570
NSN 5935-01-446-6773
NSN 6220-01-017-5492