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 6240-01-103-3081
NSN 5998-01-194-4493
NSN 6145-01-579-0321
NSN 5920-01-127-3769
NSN 6110-01-564-4982
NSN 7035-01-255-2332
NSN 4140-00-796-7212
NSN 5945-01-592-1880
NSN 5855-00-118-8762
NSN 6110-01-633-9660
NSN 6145-01-337-5554
NSN 5999-01-442-3648