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 5905-01-294-9389
NSN 5999-00-153-7903
NSN 5895-01-523-0203
NSN 5925-01-067-2928
NSN 6620-01-468-2795
NSN 5895-00-755-4647
NSN 7035-00-574-4223
NSN 6150-00-848-0359
NSN 5960-01-553-4557
NSN 6320-01-506-9439
NSN 5985-00-305-2701
NSN 5975-01-170-4131