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 5915-00-891-2385
NSN 6645-01-465-0115
NSN 5965-01-210-7784
NSN 5960-01-011-0568
NSN 5945-00-660-5262
NSN 5930-00-300-3864
NSN 5930-01-514-0273
NSN 6610-00-763-2415
NSN 4140-01-192-2978
NSN 6610-01-273-2075
NSN 6620-00-568-3947
NSN 6110-01-186-8804