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 6240-01-205-4784
NSN 5920-00-445-3585
NSN 7035-01-132-7209
NSN 6610-01-324-4718
NSN 6130-01-279-1903
NSN 5998-01-543-0032
NSN 6645-00-155-2398
NSN 5996-01-299-0681
NSN 5915-01-201-5575
NSN 6610-01-499-7518
NSN 6650-00-186-5966
NSN 6135-00-900-2139