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 5915-00-056-1350
NSN 5905-01-578-7330
NSN 5950-01-315-8119
NSN 5935-01-626-1903
NSN 6220-00-034-7280
NSN 5945-00-920-2369
NSN 5990-01-123-1216
NSN 4140-00-279-3148
NSN 6240-01-037-2215
NSN 6135-01-077-5705
NSN 6240-01-023-7720
NSN 6240-01-628-9240