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 6220-01-557-7198
NSN 5960-01-654-4353
NSN 5935-01-341-0804
NSN 5935-01-631-7746
NSN 5998-00-243-2083
NSN 7035-00-215-3272
NSN 5895-01-230-6986
NSN 5930-00-358-6171
NSN 6320-00-636-0922
NSN 6610-01-478-7509
NSN 5950-01-533-3239
NSN 6620-01-333-7014