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 6645-01-250-3787
NSN 5855-01-258-6180
NSN 6610-00-005-0137
NSN 5945-01-313-2208
NSN 5915-01-467-9048
NSN 5960-01-509-8779
NSN 6105-01-253-8858
NSN 5985-01-084-0077
NSN 5925-01-068-2887
NSN 5990-01-490-5614
NSN 5855-01-013-6864
NSN 6220-01-361-9765