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 6130-01-654-7422
NSN 6145-01-243-9547
NSN 5975-01-349-7082
NSN 2925-01-082-7248
NSN 6110-00-382-5472
NSN 6135-01-354-5535
NSN 5998-01-183-7072
NSN 5990-01-244-9998
NSN 5998-00-284-3804
NSN 5975-00-196-0698
NSN 5965-00-110-3330
NSN 5975-01-459-7763