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 6105-01-523-9973
NSN 6620-01-083-4672
NSN 5945-01-532-1777
NSN 6650-01-207-2905
NSN 6620-00-431-3837
NSN 6110-01-092-6299
NSN 5960-01-144-9183
NSN 2925-01-633-4048
NSN 5935-01-183-5361
NSN 5965-01-109-2917
NSN 5855-01-400-1590
NSN 6130-00-419-1120