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 5930-01-558-1924
NSN 6105-00-252-9017
NSN 5950-00-853-6862
NSN 5998-00-135-9102
NSN 5855-01-173-0808
NSN 5920-00-040-2923
NSN 6110-01-395-9585
NSN 6110-01-392-1541
NSN 5998-01-206-3756
NSN 5950-01-519-8947
NSN 5915-01-417-2058
NSN 6610-01-609-4151