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 5998-01-015-5165
NSN 5960-00-831-0210
NSN 5915-01-020-3827
NSN 6145-01-381-0708
NSN 5895-00-784-3797
NSN 5905-01-501-9465
NSN 5920-01-520-5328
NSN 6110-01-192-8609
NSN 5835-00-327-6192
NSN 6150-00-820-2176
NSN 5935-01-484-8816
NSN 6620-00-873-9825