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 5996-01-008-4456
NSN 5925-00-244-0711
NSN 6685-01-432-2579
NSN 5960-01-414-8918
NSN 5925-01-066-5320
NSN 5905-01-624-0330
NSN 6645-01-335-5845
NSN 6240-01-013-8895
NSN 6240-00-913-8529
NSN 6620-01-203-2153
NSN 5945-01-147-4083
NSN 5965-01-512-9925