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 6110-01-140-8419
NSN 5950-01-236-9623
NSN 7035-00-490-0485
NSN 5935-01-146-5799
NSN 7035-01-325-0536
NSN 5960-01-245-6088
NSN 5855-00-149-0766
NSN 5965-01-265-6814
NSN 5855-00-337-3679
NSN 6130-00-339-1069
NSN 5950-00-725-7284
NSN 5935-01-212-5711