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 6320-01-322-8340
NSN 5855-00-494-9581
NSN 5998-00-607-9921
NSN 7035-01-227-7492
NSN 5950-01-579-9960
NSN 5960-01-022-7322
NSN 5998-01-105-2230
NSN 5855-01-625-9668
NSN 5930-01-239-2250
NSN 5905-01-422-6880
NSN 5895-01-476-9249
NSN 6620-01-225-4996