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 5960-00-074-8968
NSN 5835-01-138-8622
NSN 5925-01-654-6988
NSN 7035-01-310-2587
NSN 6135-01-120-9812
NSN 5855-01-191-3404
NSN 6145-01-003-8665
NSN 2925-01-476-3224
NSN 5920-01-630-6654
NSN 6110-01-442-5601
NSN 5930-01-141-5842
NSN 6320-00-313-9114