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 6220-01-154-5436
NSN 6145-01-250-2006
NSN 6150-00-554-4576
NSN 5915-01-230-0857
NSN 6240-00-839-5118
NSN 6220-01-365-9048
NSN 5930-01-242-8885
NSN 5945-01-492-9907
NSN 6110-01-653-7628
NSN 5965-01-526-2087
NSN 4140-01-494-3714
NSN 6320-00-905-0543