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 5999-01-361-7107
NSN 5945-01-484-6927
NSN 6145-01-451-7412
NSN 5999-00-643-9994
NSN 6240-00-292-3237
NSN 5925-01-514-7048
NSN 2925-00-789-1106
NSN 5925-01-237-2501
NSN 6130-01-459-5528
NSN 6320-01-116-3980
NSN 6105-00-539-9995
NSN 5915-01-167-0689