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 6150-01-145-0396
NSN 5895-00-683-9723
NSN 5930-01-541-5565
NSN 6240-01-472-8172
NSN 5920-01-548-9521
NSN 6105-01-430-4030
NSN 5960-01-224-7151
NSN 6610-01-645-7404
NSN 6320-01-176-8367
NSN 5945-00-740-2594
NSN 5835-01-549-2911
NSN 5945-01-628-3267