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 5960-00-264-5233
NSN 5835-01-394-3812
NSN 6685-00-690-2544
NSN 5990-01-124-9063
NSN 5950-00-983-6179
NSN 6320-01-066-1766
NSN 6240-01-394-8112
NSN 7035-00-480-6767
NSN 5990-00-915-0575
NSN 6645-01-626-9782
NSN 6685-01-614-6634
NSN 2925-00-228-8854