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 5950-01-364-1139
NSN 6130-01-553-2017
NSN 6105-01-646-3832
NSN 6130-01-307-4070
NSN 6135-00-708-0892
NSN 5920-01-271-0710
NSN 6135-00-164-8780
NSN 6105-01-502-7434
NSN 5915-01-547-9960
NSN 5835-00-888-9422
NSN 4140-00-618-8855
NSN 6130-00-578-7175