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 6135-00-377-9165
NSN 6130-01-352-5644
NSN 6650-01-244-5614
NSN 5999-01-236-3005
NSN 6150-01-634-0575
NSN 6110-00-764-2014
NSN 5999-01-113-1653
NSN 5960-00-654-7300
NSN 6105-01-431-5681
NSN 5945-01-142-2182
NSN 6645-01-542-6159
NSN 5895-01-634-0630