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 5975-01-536-3778
NSN 2925-01-633-4048
NSN 5905-01-306-1159
NSN 5895-01-351-3203
NSN 5925-01-409-2616
NSN 5925-01-304-4336
NSN 7035-01-113-6492
NSN 5960-01-205-1517
NSN 5855-01-406-7237
NSN 5910-00-080-9919
NSN 5930-00-203-2080
NSN 6240-01-201-9218