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 5835-01-442-6482
NSN 5920-01-157-9471
NSN 6685-01-378-4224
NSN 5998-01-185-9063
NSN 2925-01-182-0227
NSN 5998-01-537-1133
NSN 6110-00-018-7046
NSN 5930-01-198-6163
NSN 6320-00-681-1324
NSN 5990-01-570-5471
NSN 5925-00-144-0482
NSN 6145-00-069-8964