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 5996-00-832-6593
NSN 5999-01-408-6761
NSN 6110-01-210-4681
NSN 5985-01-581-9904
NSN 6105-01-090-6628
NSN 5999-01-396-4165
NSN 6220-01-188-6962
NSN 6620-01-449-8743
NSN 5855-01-339-7675
NSN 6150-01-350-2063
NSN 2925-01-307-2637
NSN 5990-00-369-5212