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 5915-00-970-6590
NSN 5985-00-383-6178
NSN 5925-01-583-7063
NSN 6685-01-062-9262
NSN 6145-01-272-5892
NSN 6150-01-222-1850
NSN 5925-00-584-6298
NSN 6610-01-501-6630
NSN 5835-01-227-2318
NSN 6620-01-200-6493
NSN 5935-00-679-1559
NSN 5905-01-386-0087