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 5935-01-518-6536
NSN 6645-01-384-0628
NSN 5905-01-440-9309
NSN 5999-01-248-5676
NSN 6645-00-153-3834
NSN 4140-01-415-1187
NSN 6240-01-279-0552
NSN 6645-01-601-5473
NSN 5935-00-371-0523
NSN 6130-01-072-6405
NSN 5960-01-130-0141
NSN 5915-01-535-7478