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 6220-01-186-5930
NSN 6105-00-399-1352
NSN 5985-01-085-0132
NSN 6240-01-154-6840
NSN 5975-01-432-0050
NSN 5950-01-462-4892
NSN 6150-01-032-1677
NSN 6620-01-502-1656
NSN 5950-01-187-8567
NSN 6240-00-407-1024
NSN 6110-01-109-0434
NSN 5855-01-252-5424