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 6650-01-081-1537
NSN 5985-01-550-1060
NSN 5965-01-312-0836
NSN 6685-01-252-9470
NSN 5915-01-391-6285
NSN 6240-01-590-0398
NSN 6220-00-766-7580
NSN 6130-01-629-1080
NSN 6685-01-534-6330
NSN 5855-00-832-7316
NSN 5930-00-782-1983
NSN 4140-00-517-7902