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 6240-00-183-0750
NSN 4140-00-676-3899
NSN 6220-01-076-4383
NSN 5999-01-616-9809
NSN 5935-00-647-4020
NSN 6240-01-560-5994
NSN 5945-00-100-1261
NSN 6105-01-429-8777
NSN 6135-01-505-1293
NSN 5998-01-365-2688
NSN 6110-01-094-7661
NSN 6645-00-970-1444