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 6105-01-451-8440
NSN 6220-00-937-4721
NSN 5930-01-301-2784
NSN 5990-01-576-4383
NSN 5895-00-432-7934
NSN 5920-01-276-2886
NSN 6620-00-242-3237
NSN 6620-01-535-1230
NSN 6620-01-008-8037
NSN 6320-01-202-8761
NSN 6645-00-633-3824
NSN 2925-01-320-6512