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 5915-01-142-7391
NSN 5985-01-075-5707
NSN 5960-01-364-9795
NSN 5985-00-699-2520
NSN 2925-00-831-7024
NSN 5910-01-327-2271
NSN 7035-01-524-0493
NSN 2925-01-197-7864
NSN 5950-00-127-1361
NSN 6650-01-538-8776
NSN 5895-01-201-7150
NSN 5855-00-288-1408