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 5990-01-432-4249
NSN 5985-01-327-3601
NSN 5920-01-075-3354
NSN 5925-01-196-1055
NSN 6220-00-452-5308
NSN 6150-01-177-8649
NSN 2925-01-516-0124
NSN 5925-00-556-7923
NSN 5905-01-411-6204
NSN 5910-01-477-9617
NSN 6650-00-585-1850
NSN 5855-01-110-9564