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 5985-01-480-9482
NSN 6320-01-320-3305
NSN 5996-01-507-6746
NSN 6105-01-237-1808
NSN 6620-00-254-8985
NSN 6610-00-081-2365
NSN 6240-01-301-2839
NSN 5985-01-572-7024
NSN 6620-00-383-8740
NSN 5930-01-184-1850
NSN 5920-00-014-7684
NSN 5895-01-425-8023