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 6240-01-618-6808
NSN 6135-00-221-4720
NSN 5910-00-134-9705
NSN 5930-01-395-5842
NSN 5915-01-513-0300
NSN 6320-01-274-2501
NSN 5996-01-649-7993
NSN 5996-00-636-4849
NSN 6240-00-627-1493
NSN 5965-01-134-8078
NSN 6685-01-116-7773
NSN 5915-01-561-6363