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 6130-01-497-1394
NSN 6610-01-524-0636
NSN 5855-01-228-0942
NSN 6685-00-785-6058
NSN 6135-00-990-1822
NSN 5950-00-901-2825
NSN 6645-00-067-7070
NSN 6240-00-239-8295
NSN 5999-01-240-7059
NSN 5945-00-398-1072
NSN 5990-00-784-1254
NSN 6320-00-925-0558