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 5930-01-170-2925
NSN 6685-00-128-9727
NSN 6620-01-633-8443
NSN 5985-01-300-0821
NSN 5915-01-139-3604
NSN 7035-01-350-4247
NSN 5930-01-037-8539
NSN 5999-01-268-1461
NSN 6105-01-106-4649
NSN 7035-01-260-9543
NSN 6320-00-456-2092
NSN 5960-01-392-6982