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 5930-01-432-2155
NSN 6240-01-199-7653
NSN 6135-01-309-5765
NSN 6130-00-974-6752
NSN 5920-01-632-9399
NSN 6145-01-558-6362
NSN 5835-01-558-9444
NSN 6240-00-403-1272
NSN 6220-00-255-5652
NSN 2925-00-142-0641
NSN 5990-01-442-3520
NSN 6150-01-448-8505