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 5950-01-216-9975
NSN 5920-00-682-0500
NSN 6240-01-521-2921
NSN 5960-01-443-3067
NSN 5895-00-469-3142
NSN 6220-00-770-7658
NSN 5915-01-538-7581
NSN 4140-01-481-4237
NSN 5915-00-406-6460
NSN 5835-00-364-0816
NSN 5945-00-677-5355
NSN 4140-01-515-2722