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 5975-01-562-1796
NSN 5920-01-249-2708
NSN 5920-00-725-6710
NSN 6145-01-492-6672
NSN 5935-01-529-8742
NSN 6320-01-271-0247
NSN 5950-01-128-3750
NSN 6320-01-220-2264
NSN 5910-00-406-6442
NSN 6320-00-937-5625
NSN 5925-00-249-1287
NSN 6110-01-324-0021