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 5895-01-556-3674
NSN 6620-01-294-1044
NSN 5998-01-148-7216
NSN 6105-01-261-8028
NSN 5835-00-779-2836
NSN 6650-01-550-8892
NSN 6240-01-363-8258
NSN 5998-00-990-6403
NSN 7035-01-463-3368
NSN 5998-01-055-6654
NSN 5835-00-479-0464
NSN 5990-01-480-9938