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 7035-01-090-3369
NSN 6105-00-707-5962
NSN 5960-01-580-6360
NSN 5999-01-168-8788
NSN 5915-01-370-4797
NSN 5920-01-660-5749
NSN 6610-00-987-0680
NSN 6610-01-320-6628
NSN 5990-01-609-4793
NSN 6645-00-733-9341
NSN 4140-01-364-7845
NSN 2925-01-283-6740