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 5990-01-407-6615
NSN 6110-01-498-7956
NSN 6240-01-386-4594
NSN 5920-01-442-7685
NSN 6150-01-598-2688
NSN 5835-00-217-2147
NSN 4140-00-285-6042
NSN 6620-00-936-3463
NSN 5975-00-422-4234
NSN 5998-01-435-5462
NSN 5835-00-233-6327
NSN 6610-01-294-5666