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 5910-01-131-5688
NSN 6645-01-561-8760
NSN 5920-01-230-2660
NSN 5975-00-463-6445
NSN 5999-01-094-2516
NSN 7035-01-112-4565
NSN 6650-01-106-1868
NSN 5935-00-817-2718
NSN 6320-01-441-2438
NSN 5975-00-619-8159
NSN 4140-00-320-8614
NSN 2925-01-408-6205