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 5925-01-134-5124
NSN 6645-00-736-0476
NSN 5920-00-269-6178
NSN 5855-00-179-4468
NSN 6220-01-215-0907
NSN 5985-00-314-0831
NSN 6610-00-550-6913
NSN 5905-01-375-2383
NSN 5985-01-074-8896
NSN 5975-00-133-9064
NSN 6145-00-409-6844
NSN 5935-01-366-8217