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 5950-00-804-2767
NSN 6220-01-181-9945
NSN 4140-01-179-0797
NSN 6240-01-503-5404
NSN 5985-01-576-9593
NSN 5975-01-144-9401
NSN 6320-00-139-1090
NSN 5915-00-050-5357
NSN 6320-01-631-7828
NSN 5910-01-393-3161
NSN 5975-00-599-1701
NSN 6145-00-612-7343