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 5985-00-425-6156
NSN 5996-01-217-6644
NSN 5920-00-246-5992
NSN 6650-01-412-1040
NSN 5920-00-895-3270
NSN 7035-01-189-1549
NSN 2925-01-100-3694
NSN 6650-01-343-1708
NSN 5930-01-464-6693
NSN 5990-01-408-6554
NSN 5985-00-204-4716
NSN 5998-01-319-1956