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 6110-01-212-3261
NSN 6650-01-518-9679
NSN 5905-00-004-4975
NSN 6650-01-487-4236
NSN 5996-01-336-9541
NSN 6220-00-073-2768
NSN 6150-01-212-2539
NSN 5920-00-705-2916
NSN 6105-01-566-9343
NSN 5965-00-055-8013
NSN 5910-00-161-0684
NSN 5915-00-983-4998