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 6240-00-454-6490
NSN 6135-01-525-8196
NSN 5999-00-165-1709
NSN 6650-00-504-8238
NSN 6620-01-504-1827
NSN 4140-01-624-2199
NSN 5905-01-330-5898
NSN 5910-01-350-3639
NSN 5915-00-549-1098
NSN 5950-00-082-1616
NSN 5915-01-366-3469
NSN 5905-00-948-8580