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 5905-00-456-8387
NSN 6130-01-495-7600
NSN 6145-01-634-0388
NSN 5835-01-430-4765
NSN 5996-01-044-2465
NSN 5950-01-062-1563
NSN 6620-00-008-3280
NSN 5950-01-410-2925
NSN 5905-00-100-8474
NSN 6650-01-032-1786
NSN 6145-01-339-8513
NSN 6320-01-082-2459