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 5985-01-147-5470
NSN 5990-00-050-7693
NSN 2925-01-151-6969
NSN 5905-00-066-4093
NSN 5950-01-526-9797
NSN 5965-00-802-0060
NSN 6240-01-454-8439
NSN 6105-01-267-1888
NSN 5920-01-337-7646
NSN 5960-00-851-3625
NSN 5965-01-465-4370
NSN 6145-01-262-2160