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 5895-00-469-8047
NSN 6650-01-633-9147
NSN 5925-00-500-9664
NSN 6620-00-179-2575
NSN 5950-01-025-3894
NSN 4140-00-900-6102
NSN 5996-01-505-0101
NSN 6150-00-518-2125
NSN 2925-01-511-2667
NSN 4140-01-054-0289
NSN 6240-00-410-8710
NSN 5905-01-485-8820