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 6240-00-105-0584
NSN 6150-01-485-1112
NSN 6320-00-845-3261
NSN 6645-00-936-9111
NSN 6145-01-487-5589
NSN 5965-01-262-3513
NSN 5915-01-205-2643
NSN 6645-01-487-4341
NSN 5935-01-314-8496
NSN 5915-01-039-4899
NSN 7035-00-188-6674
NSN 5835-01-041-0873