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 6320-01-132-2746
NSN 5910-01-421-0769
NSN 6620-01-246-4314
NSN 5950-01-400-3527
NSN 7035-01-041-9536
NSN 6135-00-161-0746
NSN 6105-01-063-4911
NSN 6645-00-401-5563
NSN 6105-01-439-6614
NSN 6150-01-599-9637
NSN 5895-01-383-7587
NSN 6220-00-649-3241