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 5999-01-288-4171
NSN 5935-01-393-0745
NSN 6610-01-182-9828
NSN 5975-01-122-4250
NSN 6110-01-452-4120
NSN 6220-00-156-4469
NSN 6645-01-040-8337
NSN 5999-01-285-3512
NSN 5998-01-343-1960
NSN 6610-00-797-1417
NSN 4140-01-341-9807
NSN 6620-00-133-0220