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 5960-01-325-2241
NSN 5930-01-054-2903
NSN 5945-00-262-6042
NSN 6320-01-185-3857
NSN 6145-01-441-1201
NSN 5925-00-678-3559
NSN 5910-01-077-6247
NSN 6110-00-448-9489
NSN 5990-01-497-9249
NSN 6150-01-029-3883
NSN 6620-01-538-0061
NSN 2925-01-535-7235