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 5998-00-926-3730
NSN 5930-00-555-1866
NSN 4140-00-198-4961
NSN 5960-00-219-6148
NSN 6620-01-574-6774
NSN 5996-01-049-1483
NSN 5998-01-238-2579
NSN 6110-01-081-3385
NSN 5855-01-105-7793
NSN 5925-01-167-8144
NSN 5960-01-442-9304
NSN 5910-00-296-8816