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 5855-00-797-8217
NSN 2925-01-448-2880
NSN 5925-01-216-0287
NSN 5905-01-098-6113
NSN 5965-01-251-4381
NSN 6105-01-004-1808
NSN 6150-00-279-9337
NSN 5915-01-357-6158
NSN 6220-01-317-8822
NSN 5998-01-323-7112
NSN 7035-00-897-7567
NSN 5985-01-206-8139