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 5945-01-468-6041
NSN 5985-01-327-0305
NSN 5945-01-023-1668
NSN 6105-00-968-7525
NSN 7035-01-336-0464
NSN 5935-01-433-1914
NSN 6220-01-389-8188
NSN 6135-01-156-4627
NSN 5910-00-984-3944
NSN 5895-00-911-3055
NSN 7035-01-249-4547
NSN 5935-01-378-3312