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 5950-01-133-8553
NSN 5920-01-076-4705
NSN 5945-01-032-4742
NSN 5996-01-518-4674
NSN 6240-00-082-1142
NSN 5998-00-100-4948
NSN 5915-00-222-8186
NSN 5910-00-949-6564
NSN 5975-00-806-2113
NSN 5998-01-062-0394
NSN 6145-00-008-1834
NSN 5999-00-518-1007