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 6220-00-135-0139
NSN 2925-01-053-5697
NSN 5975-01-386-7618
NSN 5996-01-622-8976
NSN 4140-01-222-2140
NSN 5910-01-128-1456
NSN 5998-01-241-9552
NSN 5910-00-669-4948
NSN 5835-01-432-8801
NSN 5855-01-274-5311
NSN 6320-01-441-2438
NSN 7035-01-477-9740