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 6110-00-257-1446
NSN 5999-00-256-9366
NSN 5996-00-239-7914
NSN 5855-00-436-3852
NSN 5920-01-262-5094
NSN 6150-00-085-7752
NSN 6105-01-451-6801
NSN 6220-00-421-3508
NSN 6610-00-078-9620
NSN 6145-01-270-3861
NSN 6110-00-428-8106
NSN 6240-00-726-1648