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 7035-01-294-2688
NSN 5895-01-285-2482
NSN 5925-00-008-4413
NSN 4140-01-246-3090
NSN 6645-01-138-2985
NSN 5835-01-351-3425
NSN 5998-01-412-4151
NSN 5998-01-076-5453
NSN 5990-01-364-0813
NSN 5996-01-579-6558
NSN 6685-01-322-6429
NSN 6320-01-648-5538