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 6610-00-919-6767
NSN 6130-01-138-3569
NSN 5935-00-468-7447
NSN 5935-01-379-7756
NSN 6650-01-202-7433
NSN 6620-01-266-4500
NSN 5965-00-405-3793
NSN 6130-00-605-7887
NSN 5999-01-371-7745
NSN 6150-00-958-4173
NSN 5975-01-594-6894
NSN 6240-01-139-3377