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 6620-01-261-0054
NSN 5935-00-140-9595
NSN 6320-01-578-6006
NSN 5998-01-398-0673
NSN 5996-01-594-8747
NSN 6320-01-578-6006
NSN 5920-01-458-5224
NSN 5999-00-958-5126
NSN 6685-01-327-7384
NSN 5999-01-025-9377
NSN 5945-01-236-8865
NSN 4140-01-542-9504