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 5975-00-644-4972
NSN 5855-01-162-5251
NSN 6150-01-233-5723
NSN 5985-00-293-5684
NSN 6650-00-328-5632
NSN 5930-00-841-3985
NSN 2925-01-651-4870
NSN 6240-01-200-7937
NSN 5985-01-633-6587
NSN 5998-01-440-8951
NSN 6150-00-383-7883
NSN 5975-00-985-0832