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 7035-00-574-4223
NSN 6320-00-857-4073
NSN 5950-01-604-9228
NSN 5935-00-053-8892
NSN 7035-01-495-1414
NSN 6145-01-023-6967
NSN 6240-00-140-1802
NSN 6650-01-381-3542
NSN 7035-00-541-8516
NSN 6110-00-714-0115
NSN 5910-01-554-3152
NSN 6320-01-227-2648