Velocity-5500; blade styl-round butterfly
A motor actuated device used to maintain an (adjustable) constant pressure difference between two rooms in a ship or between one room and outdoors. for spring loaded device see control unit, air pressure, spring loaded (66597).
NSN 5990-01-421-5342
NSN 5925-00-935-5287
NSN 6110-01-392-9565
NSN 5985-00-291-9974
NSN 2925-01-579-1010
NSN 6320-01-145-9013
NSN 5999-01-147-4844
NSN 6145-00-104-6047
NSN 6650-01-434-0331
NSN 5975-01-542-1817
NSN 6645-01-514-7403
NSN 6620-01-026-0346