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 6685-01-469-3137
NSN 5950-00-597-8644
NSN 5855-00-014-5008
NSN 5996-01-201-8260
NSN 5920-00-721-0721
NSN 6645-01-123-6661
NSN 5915-00-612-7461
NSN 6220-01-492-2563
NSN 5998-01-415-6359
NSN 5998-01-085-6299
NSN 7035-00-193-2269
NSN 5965-01-511-1997