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 5855-00-879-5849
NSN 6685-01-315-1860
NSN 5990-01-586-8202
NSN 6620-00-450-2532
NSN 5945-01-282-0089
NSN 5895-00-255-1522
NSN 6145-01-630-9739
NSN 6610-01-077-0601
NSN 5915-00-057-5804
NSN 6145-00-011-2390
NSN 5915-01-258-5799
NSN 5945-01-590-0251