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 5835-01-432-1277
NSN 5965-01-471-3278
NSN 5945-01-381-8441
NSN 5960-01-010-3083
NSN 5990-01-658-9964
NSN 5996-00-411-6151
NSN 5905-01-529-9987
NSN 5985-00-312-4577
NSN 6240-01-188-7282
NSN 2925-01-554-5246
NSN 5935-01-659-5797
NSN 5895-01-138-0810