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 5915-01-227-0918
NSN 6240-00-143-4782
NSN 7035-01-158-7673
NSN 5990-00-011-2994
NSN 5915-01-320-0390
NSN 6130-01-486-8293
NSN 5910-01-590-4506
NSN 6110-01-581-7721
NSN 5895-01-237-5065
NSN 6650-00-407-0745
NSN 6145-00-871-9112
NSN 5915-01-626-2579