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 5915-00-440-0756
NSN 6105-00-853-6582
NSN 5965-01-580-7754
NSN 6135-01-326-2536
NSN 6320-00-313-9114
NSN 5925-01-648-2635
NSN 6145-01-094-6822
NSN 5975-00-089-3905
NSN 6240-00-076-2752
NSN 5835-00-106-2120
NSN 6320-00-270-8222
NSN 5998-01-147-2013