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 6220-01-642-1660
NSN 5935-01-564-0875
NSN 6150-01-487-6202
NSN 5855-00-235-2676
NSN 6105-01-423-8242
NSN 6145-01-025-1822
NSN 5855-01-120-2912
NSN 5996-00-707-6228
NSN 5950-01-597-6137
NSN 7035-01-327-4456
NSN 6130-01-500-2359
NSN 7035-00-140-3070