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 6645-01-368-9990
NSN 6150-00-258-3761
NSN 5950-01-560-8597
NSN 6220-01-107-8096
NSN 5895-01-530-1709
NSN 6135-01-127-0173
NSN 5935-01-448-8976
NSN 5920-00-216-8665
NSN 5975-01-111-9988
NSN 5905-01-383-7537
NSN 5998-00-051-4163
NSN 6150-01-102-9667