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 6610-01-064-3507
NSN 5945-00-681-6453
NSN 5910-00-099-9998
NSN 7035-01-265-2301
NSN 6145-01-136-6184
NSN 5920-01-285-5674
NSN 6150-01-076-0679
NSN 6650-00-829-9745
NSN 5905-00-611-4303
NSN 5999-00-762-0662
NSN 5996-01-368-6730
NSN 5965-00-524-5521