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 6620-01-352-5640
NSN 5855-01-133-3587
NSN 5990-00-283-1324
NSN 5920-01-009-5381
NSN 6130-00-873-4468
NSN 6685-01-131-4694
NSN 6620-00-538-8746
NSN 2925-01-538-1343
NSN 6240-00-086-6504
NSN 5915-01-245-3403
NSN 5895-01-604-9279
NSN 5910-01-095-6185