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 5990-01-056-6413
NSN 5965-01-003-2641
NSN 6645-01-550-9669
NSN 5905-01-449-6805
NSN 6150-01-222-7943
NSN 6650-01-132-6860
NSN 5985-01-393-7057
NSN 5935-00-043-4603
NSN 6620-00-415-2768
NSN 6645-01-066-1679
NSN 6220-01-038-8292
NSN 6105-01-414-7100