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 6650-01-483-9191
NSN 6650-00-103-0867
NSN 6110-00-425-8787
NSN 5935-01-437-4153
NSN 5895-01-552-2715
NSN 6105-01-557-2983
NSN 6650-01-227-9634
NSN 5960-00-470-5079
NSN 5950-01-123-2141
NSN 6150-01-236-3397
NSN 5915-00-626-2901
NSN 6110-01-391-7542