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 5990-01-633-9503
NSN 5910-00-407-7620
NSN 5920-01-459-8493
NSN 5835-00-341-5441
NSN 5998-01-010-2809
NSN 5990-00-110-1153
NSN 5915-01-316-3478
NSN 5950-01-361-8109
NSN 6685-00-815-5183
NSN 6320-01-322-4950
NSN 5895-01-653-6036
NSN 6135-00-321-6707