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 6320-00-931-4855
NSN 5835-00-065-6757
NSN 5855-00-688-9954
NSN 5960-00-263-0106
NSN 5985-00-238-7474
NSN 5915-01-415-8089
NSN 5905-01-556-9554
NSN 5945-01-069-2998
NSN 5905-01-237-3440
NSN 5999-01-586-2789
NSN 6650-00-829-9745
NSN 5996-00-082-3955