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 5905-01-172-2520
NSN 6110-01-501-5131
NSN 5999-00-025-3467
NSN 6220-01-228-9488
NSN 5895-01-022-4864
NSN 6620-00-628-2150
NSN 5975-00-159-8876
NSN 6650-01-471-2171
NSN 5915-00-404-8542
NSN 6135-01-532-7951
NSN 5985-00-392-0522
NSN 5950-01-321-4858