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 5905-00-261-7694
NSN 5945-01-055-1963
NSN 5996-01-192-8606
NSN 5835-00-540-9669
NSN 6110-01-368-6202
NSN 6220-01-047-4060
NSN 5996-01-599-9867
NSN 5998-01-044-6520
NSN 5930-00-632-7815
NSN 5920-01-350-9823
NSN 5935-00-584-7365
NSN 5945-00-917-4999