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 5950-01-444-1789
NSN 5965-01-600-0444
NSN 5855-01-440-8049
NSN 6135-00-548-2765
NSN 6650-00-051-1395
NSN 5985-01-294-9788
NSN 5905-01-339-2311
NSN 5965-00-642-9879
NSN 5835-01-106-1456
NSN 6130-00-904-4770
NSN 5985-00-817-4913
NSN 5935-01-162-7338