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 6150-01-643-1803
NSN 5965-01-170-9891
NSN 5996-01-013-6177
NSN 5990-00-990-7030
NSN 5910-01-386-1152
NSN 5930-00-081-2238
NSN 5985-01-067-7297
NSN 6240-01-508-2442
NSN 5895-01-127-3210
NSN 6620-01-383-7519
NSN 5990-00-993-3130
NSN 6130-01-461-3145