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 5925-01-487-0356
NSN 6145-01-306-4923
NSN 6645-01-419-6780
NSN 5945-01-271-7456
NSN 6220-01-471-1714
NSN 5999-00-728-5127
NSN 6240-01-604-9172
NSN 5935-01-399-2574
NSN 5998-00-035-5308
NSN 5965-00-822-8549
NSN 6610-00-737-6611
NSN 5999-01-126-4516