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 6685-01-096-2555
NSN 5998-01-084-1890
NSN 5945-01-523-6188
NSN 6320-01-161-6640
NSN 6130-01-408-5814
NSN 5985-01-522-6799
NSN 5998-01-310-7486
NSN 5945-01-333-8722
NSN 5895-00-446-1813
NSN 6650-00-299-1839
NSN 6110-00-263-4536
NSN 5996-00-419-9634