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 5998-00-353-6471
NSN 5965-01-431-7377
NSN 6645-01-214-4550
NSN 6650-01-134-8933
NSN 4140-01-425-7955
NSN 7035-01-487-4314
NSN 6620-01-505-3496
NSN 6150-01-530-6126
NSN 5855-01-233-2767
NSN 6110-00-798-4794
NSN 6645-01-076-4655
NSN 7035-00-931-9415