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 6130-01-497-0459
NSN 6130-01-386-5762
NSN 5910-01-561-7025
NSN 5960-00-834-0571
NSN 5930-00-244-1869
NSN 6110-01-347-3599
NSN 5945-01-170-6096
NSN 5915-01-203-4322
NSN 5998-01-412-0928
NSN 5990-01-321-2997
NSN 6110-01-601-8176
NSN 7035-00-562-9881