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 6105-01-244-9762
NSN 5950-01-175-2598
NSN 6150-01-523-3473
NSN 5999-00-702-5260
NSN 5910-00-001-3302
NSN 5965-01-043-9357
NSN 5999-01-504-8201
NSN 5999-01-168-8788
NSN 5855-00-174-3482
NSN 5920-00-094-0655
NSN 6240-00-299-8474
NSN 5950-01-543-2501