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 5998-01-512-9690
NSN 6105-00-472-3808
NSN 6240-00-181-2503
NSN 6650-01-272-9746
NSN 5930-00-111-2474
NSN 2925-01-150-7160
NSN 6135-00-309-0074
NSN 6135-01-020-3805
NSN 6135-00-891-4944
NSN 5855-01-147-6024
NSN 5975-00-725-1287
NSN 6145-01-392-1116