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 6650-01-048-3791
NSN 5930-01-394-7658
NSN 5960-01-411-5217
NSN 5920-00-115-9738
NSN 5998-00-929-3950
NSN 5950-01-032-4513
NSN 2925-01-359-9818
NSN 7035-01-625-3795
NSN 6610-00-861-3665
NSN 6130-01-347-0867
NSN 6650-00-001-2472
NSN 2925-01-022-8332