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 5915-01-104-4977
NSN 5999-01-042-8006
NSN 5895-00-854-6524
NSN 6110-00-990-6168
NSN 7035-01-590-1544
NSN 6685-01-367-2927
NSN 5950-01-646-2627
NSN 6150-00-552-4629
NSN 5895-00-276-7916
NSN 5915-01-650-1733
NSN 6650-01-168-1659
NSN 6620-00-928-6053