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 5905-00-244-6205
NSN 6110-01-063-8309
NSN 5915-01-591-6912
NSN 6650-01-081-8801
NSN 6110-01-333-3596
NSN 5998-01-462-6545
NSN 6620-01-426-2220
NSN 5950-00-468-4079
NSN 6105-01-621-4319
NSN 6620-00-350-5817
NSN 6650-01-461-7713
NSN 5998-01-394-3797