A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5935-01-238-6415
NSN 5975-01-480-3405
NSN 6650-01-463-2274
NSN 5945-01-322-7960
NSN 6150-00-827-0081
NSN 5945-00-795-2894
NSN 6650-00-973-9533
NSN 6685-01-492-5831
NSN 5905-00-051-4226
NSN 5925-01-541-3101
NSN 6150-01-320-3375
NSN 6620-01-324-6439