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 5905-00-900-4141
NSN 6135-01-391-6515
NSN 5998-01-608-1873
NSN 5920-00-952-5360
NSN 6320-00-557-3079
NSN 6220-00-142-5115
NSN 6105-01-485-1180
NSN 6320-00-682-3448
NSN 5990-00-212-4316
NSN 5925-01-551-8553
NSN 7035-01-129-7834
NSN 2925-01-157-9204