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 6130-00-224-8387
NSN 5965-01-392-1761
NSN 5920-01-422-9616
NSN 5985-01-529-9056
NSN 5895-01-415-3114
NSN 6135-01-377-5729
NSN 7035-00-731-8729
NSN 6240-01-423-0605
NSN 5998-01-154-7289
NSN 6145-00-655-2738
NSN 6105-00-189-0515
NSN 5835-01-171-5368