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 6645-01-362-0596
NSN 6150-01-085-9111
NSN 5990-00-400-4794
NSN 4140-01-383-4738
NSN 5996-01-311-2808
NSN 6105-01-227-3003
NSN 5950-01-502-9565
NSN 6130-01-425-0762
NSN 5996-01-313-3930
NSN 5935-00-935-2130
NSN 5996-01-127-1734
NSN 5950-01-366-3688