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 5925-01-255-2445
NSN 5950-01-494-0382
NSN 6620-01-627-0478
NSN 5998-01-377-9835
NSN 5915-00-435-6035
NSN 5965-01-258-5662
NSN 7035-01-271-1643
NSN 5915-01-337-7141
NSN 5835-00-794-7500
NSN 6220-01-367-2923
NSN 6645-00-406-2564
NSN 5935-01-657-9583