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 6150-01-135-9818
NSN 7035-01-339-5480
NSN 5975-01-354-9673
NSN 6130-00-492-9473
NSN 5998-00-408-2276
NSN 5945-00-595-6769
NSN 5915-01-351-7979
NSN 6105-00-723-7343
NSN 5950-01-188-5846
NSN 6220-01-297-9361
NSN 6240-00-927-3845
NSN 5895-00-246-4415