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 5945-00-482-5771
NSN 5996-00-989-4318
NSN 5990-00-147-3144
NSN 5935-01-021-4611
NSN 6150-01-219-9835
NSN 5895-01-063-2151
NSN 5990-01-076-8901
NSN 6150-01-583-4400
NSN 5960-01-473-9203
NSN 6240-00-201-9011
NSN 5835-01-088-1787
NSN 5895-01-423-7268