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 5935-01-634-0668
NSN 6110-01-368-2759
NSN 6110-00-244-4907
NSN 5985-01-530-4133
NSN 5905-00-894-4977
NSN 6220-00-825-2783
NSN 5835-01-191-3405
NSN 6240-01-204-1918
NSN 6145-01-634-0388
NSN 6240-00-983-6761
NSN 5895-01-563-9634
NSN 5996-01-586-9111