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 5950-01-586-9013
NSN 5998-01-313-9046
NSN 6145-01-151-0238
NSN 5998-01-216-8785
NSN 5998-00-198-7310
NSN 5835-01-359-2575
NSN 5935-01-418-8334
NSN 6220-00-553-8938
NSN 6620-00-224-1335
NSN 6130-01-268-2841
NSN 6220-01-641-6198
NSN 6610-00-546-8759