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 6135-00-593-6831
NSN 5835-01-155-0786
NSN 5975-01-246-5308
NSN 6110-00-500-2852
NSN 6645-01-134-2976
NSN 5985-01-255-3493
NSN 6220-00-805-9889
NSN 6610-01-612-0157
NSN 5905-00-280-2727
NSN 5925-00-606-6529
NSN 6620-01-512-8146
NSN 5996-00-104-8293