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 5998-01-334-0945
NSN 2925-00-549-4937
NSN 6320-00-882-7061
NSN 6610-01-184-3016
NSN 6150-00-751-9173
NSN 6240-01-558-8303
NSN 6650-01-437-8852
NSN 5985-01-386-3182
NSN 6620-00-232-2048
NSN 5996-01-446-8198
NSN 5975-01-384-3723
NSN 5965-01-460-9743