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 6645-01-437-7770
NSN 5990-01-362-7532
NSN 5920-00-420-1737
NSN 7035-00-003-7518
NSN 5925-01-367-7924
NSN 5999-00-707-0073
NSN 5996-01-460-8631
NSN 5945-01-438-1561
NSN 6685-00-642-0533
NSN 6150-00-418-8498
NSN 6105-00-248-3900
NSN 5950-00-052-9417