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 6150-01-087-3963
NSN 6650-01-512-1930
NSN 5990-00-583-9577
NSN 5990-01-443-2931
NSN 6220-01-089-8839
NSN 7035-00-299-7150
NSN 5945-00-393-1191
NSN 4140-01-049-3977
NSN 6110-00-969-7065
NSN 5950-01-254-9425
NSN 6240-01-320-1308
NSN 6105-00-711-3578