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 5945-01-127-9533
NSN 5990-01-362-5373
NSN 5855-01-490-0745
NSN 5965-01-472-1997
NSN 6220-00-910-7816
NSN 6130-01-162-3416
NSN 5920-00-832-6032
NSN 5999-00-069-8262
NSN 5985-01-043-4993
NSN 5990-01-421-5342
NSN 6645-00-246-4934
NSN 6135-01-378-1635