A valve that controls flow by a circular disk, or a pair of semicircular disks, attached to a common spindle or lever turning on a diametral axis.
NSN 5990-01-014-1280
NSN 5975-01-332-7833
NSN 5895-00-898-4447
NSN 6650-01-568-5750
NSN 5930-01-522-5653
NSN 6105-00-252-3233
NSN 6240-01-604-9172
NSN 6105-00-202-2469
NSN 5915-01-586-7934
NSN 5999-01-324-9681
NSN 5990-01-206-8895
NSN 6130-01-454-2252