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 5975-01-201-4353
NSN 6130-01-556-6940
NSN 5996-00-942-7912
NSN 5920-00-912-0536
NSN 6320-01-302-5157
NSN 5925-01-519-2627
NSN 6650-01-063-4793
NSN 5960-01-127-0246
NSN 5935-01-622-7894
NSN 4140-01-161-3657
NSN 5945-01-040-5749
NSN 5965-01-155-3131