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 5935-00-836-9986
NSN 6320-00-025-9910
NSN 5915-00-895-7230
NSN 5999-01-061-3834
NSN 5920-01-604-9426
NSN 6650-01-324-0351
NSN 5965-01-050-8447
NSN 5835-00-400-5056
NSN 5998-01-158-6465
NSN 5910-01-555-6682
NSN 5996-00-462-2533
NSN 5999-01-397-0192