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 5950-01-457-6106
NSN 5998-01-102-6834
NSN 5990-01-633-9503
NSN 5835-01-332-2867
NSN 6650-01-646-9740
NSN 5905-00-167-6872
NSN 6220-01-222-8118
NSN 5920-00-450-8063
NSN 5925-01-089-4946
NSN 5935-01-105-8997
NSN 6150-00-412-1908
NSN 6220-01-139-3520