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 5996-01-014-6103
NSN 6610-01-532-4217
NSN 5915-01-440-2794
NSN 6135-00-134-6648
NSN 5996-01-025-8571
NSN 6610-01-253-9180
NSN 5915-01-223-8043
NSN 6135-01-570-4284
NSN 5990-01-632-0969
NSN 5985-00-136-0418
NSN 6220-01-181-3135
NSN 5905-00-124-7339