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 5930-00-421-2916
NSN 6620-01-158-3125
NSN 6220-01-461-0304
NSN 5996-00-035-5624
NSN 5920-00-274-6929
NSN 5985-01-212-3931
NSN 5930-01-459-7993
NSN 5915-01-395-2347
NSN 5915-00-016-3589
NSN 5935-00-772-0873
NSN 6145-00-508-8353
NSN 6650-00-434-0188