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 5950-00-280-6386
NSN 5920-00-629-0442
NSN 5998-01-546-8115
NSN 5930-01-215-0637
NSN 5965-01-364-1232
NSN 5920-01-648-7824
NSN 5950-01-093-8580
NSN 6105-00-074-3223
NSN 6150-00-004-4555
NSN 6130-01-643-7201
NSN 6645-01-508-0345
NSN 6135-01-439-8669