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 6320-00-688-9983
NSN 6645-01-400-1137
NSN 6110-00-350-6192
NSN 5835-01-575-1778
NSN 5985-01-062-4741
NSN 5920-01-293-6530
NSN 5930-01-326-2261
NSN 6610-00-465-4983
NSN 5925-00-468-2757
NSN 5999-01-020-0824
NSN 5855-00-361-0167
NSN 6110-01-512-9520