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 5905-01-429-9943
NSN 6320-00-036-3688
NSN 6145-01-294-8222
NSN 5945-01-343-3761
NSN 6620-00-720-3278
NSN 5930-01-209-6830
NSN 6320-01-399-6177
NSN 4140-01-461-0713
NSN 5905-01-201-0418
NSN 5915-00-934-3446
NSN 5965-00-285-0745
NSN 5998-01-456-8107