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 6220-00-907-3526
NSN 6145-01-088-7495
NSN 6110-01-525-7794
NSN 5920-01-010-1827
NSN 6610-01-145-2569
NSN 6645-01-138-3855
NSN 5975-00-189-0857
NSN 5960-01-564-5044
NSN 5835-01-011-4366
NSN 6130-01-097-2524
NSN 5855-01-528-7287
NSN 5990-01-204-6163