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 5965-01-415-0872
NSN 6685-01-057-0768
NSN 7035-01-110-2567
NSN 6110-00-222-8955
NSN 6610-00-673-8854
NSN 7035-01-209-0045
NSN 5998-01-438-9179
NSN 5950-01-033-5808
NSN 5920-00-296-2440
NSN 6135-00-377-9165
NSN 6105-01-071-1367
NSN 5996-01-091-4836