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 7035-00-513-9764
NSN 5975-00-629-1193
NSN 6135-01-272-6039
NSN 2925-01-411-4666
NSN 5999-01-576-9958
NSN 6220-00-910-0320
NSN 6685-01-151-2178
NSN 6105-00-688-7082
NSN 4140-01-485-0083
NSN 6105-01-432-6472
NSN 5855-01-360-6650
NSN 5930-01-464-4233