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 6135-00-050-7189
NSN 6150-00-919-7265
NSN 5895-01-099-1515
NSN 6645-00-057-3499
NSN 5930-01-432-2481
NSN 5960-01-167-8796
NSN 5990-01-516-9665
NSN 6130-01-373-9307
NSN 5950-00-189-0551
NSN 5996-00-163-4950
NSN 5855-01-136-1916
NSN 6685-01-355-3550