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 5835-00-140-5291
NSN 5910-00-495-3168
NSN 7035-01-524-8969
NSN 5930-00-040-9182
NSN 5975-00-840-5844
NSN 5925-01-544-2864
NSN 5950-01-571-5052
NSN 6610-01-326-0119
NSN 6130-01-262-0056
NSN 6320-01-397-9995
NSN 6145-01-571-5597
NSN 5935-00-485-4131