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 6130-01-150-3273
NSN 6220-01-290-0137
NSN 7035-01-053-4769
NSN 6645-00-503-1379
NSN 5985-01-146-3647
NSN 5905-01-421-7427
NSN 5915-01-416-1528
NSN 6150-00-661-0184
NSN 6135-00-686-4777
NSN 5895-01-219-6175
NSN 5996-01-465-2305
NSN 6645-01-211-6502