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 2925-01-550-0177
NSN 5910-01-196-6153
NSN 6685-01-448-9163
NSN 5930-01-020-3643
NSN 5975-01-498-1874
NSN 5935-01-194-1022
NSN 5950-00-517-0467
NSN 5950-01-324-5858
NSN 6685-00-542-6608
NSN 7035-00-922-5700
NSN 5975-01-068-4125
NSN 6645-01-344-4184