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 5996-01-112-2731
NSN 6220-01-283-6802
NSN 6650-01-140-4463
NSN 5920-01-252-8083
NSN 5999-00-721-2024
NSN 5910-01-473-1105
NSN 6240-01-441-3606
NSN 5990-00-583-9920
NSN 5965-00-175-8972
NSN 5985-01-551-4006
NSN 6650-01-187-0205
NSN 5945-00-066-8591