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 6610-01-563-1809
NSN 5950-00-597-3661
NSN 5895-01-519-2089
NSN 6620-00-963-1319
NSN 5985-00-427-6469
NSN 5905-01-157-9933
NSN 5998-01-521-3485
NSN 5835-00-063-0390
NSN 5950-01-415-5752
NSN 4140-01-447-3141
NSN 5905-01-344-9710
NSN 5915-00-189-7514