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 5910-01-543-1648
NSN 5996-01-629-4123
NSN 6620-01-234-1799
NSN 5999-01-389-9578
NSN 5960-01-327-0334
NSN 6145-01-643-9285
NSN 5985-00-185-5430
NSN 5915-01-274-1411
NSN 6105-01-030-1272
NSN 5910-00-366-6900
NSN 5930-01-458-4480
NSN 4140-00-104-7323