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 6645-00-776-4462
NSN 5998-00-239-0308
NSN 6620-01-527-8400
NSN 6220-00-887-2637
NSN 5999-00-806-2570
NSN 5855-01-160-3802
NSN 6150-01-064-0345
NSN 6130-01-264-9003
NSN 5960-01-178-7500
NSN 5998-01-487-3833
NSN 6620-00-199-8734
NSN 5905-01-032-7735