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 6320-00-036-3688
NSN 5905-00-450-6332
NSN 5930-01-523-3712
NSN 6650-00-152-8738
NSN 5915-00-449-1454
NSN 2925-01-406-9844
NSN 5910-01-364-4949
NSN 6645-00-145-6411
NSN 5998-01-298-4572
NSN 5985-01-220-0874
NSN 5990-01-588-3999
NSN 6620-01-094-6549