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 5935-00-136-7173
NSN 5975-01-252-3109
NSN 6145-00-975-4457
NSN 6610-00-168-2200
NSN 6105-01-107-7938
NSN 6220-01-554-0362
NSN 5910-01-258-3371
NSN 5910-00-903-1952
NSN 6150-01-542-8724
NSN 6240-01-574-5642
NSN 5905-01-440-9398
NSN 5935-01-401-5324