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 6320-01-514-6141
NSN 5975-00-141-0531
NSN 4140-01-447-2419
NSN 6620-01-367-0844
NSN 6240-01-631-7690
NSN 6645-01-653-2848
NSN 6645-01-258-5558
NSN 5930-01-631-8496
NSN 6240-00-079-0112
NSN 5915-00-253-8541
NSN 6135-00-377-9165
NSN 5965-01-107-4078