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 6645-01-583-8153
NSN 6320-01-462-3555
NSN 6135-00-078-9931
NSN 5965-00-464-6191
NSN 5920-01-538-7374
NSN 6145-00-275-4046
NSN 5855-01-063-6340
NSN 4140-01-214-1968
NSN 5930-00-788-6193
NSN 5930-01-327-4239
NSN 5998-01-210-1635
NSN 5935-01-613-8465