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 5985-01-630-1576
NSN 5945-00-935-8657
NSN 6110-01-415-7890
NSN 5985-01-178-3988
NSN 5835-01-015-4610
NSN 6650-00-963-1692
NSN 6220-01-330-5888
NSN 5960-01-111-9918
NSN 2925-01-261-0701
NSN 5905-01-422-1670
NSN 5925-01-244-1756
NSN 5930-01-172-2779