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 6645-01-541-7619
NSN 6650-01-465-2923
NSN 6145-00-374-9237
NSN 7035-01-495-1090
NSN 6650-00-020-2368
NSN 6320-01-659-2819
NSN 6650-01-327-3068
NSN 6135-01-142-2417
NSN 5985-01-267-6647
NSN 6220-01-332-4698
NSN 5855-01-506-6767
NSN 6150-01-634-0575