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 5935-00-053-9529
NSN 5855-00-337-3679
NSN 5990-01-359-8334
NSN 6320-01-240-4637
NSN 5925-01-501-6465
NSN 5855-01-100-3272
NSN 6240-01-055-5193
NSN 6645-01-201-5802
NSN 6645-01-400-2119
NSN 5985-01-479-9010
NSN 5930-01-306-4468
NSN 5960-01-439-2980