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 6320-01-612-7035
NSN 6610-01-564-3040
NSN 5930-01-080-2551
NSN 6320-01-399-6177
NSN 5960-01-632-6576
NSN 5930-01-440-8553
NSN 6135-01-205-5965
NSN 5985-01-551-3618
NSN 5975-00-836-4761
NSN 7035-00-312-3055
NSN 6135-00-488-4478
NSN 5935-01-434-6983