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 5935-01-066-8368
NSN 6620-00-273-8735
NSN 6145-01-181-2808
NSN 5855-00-466-2309
NSN 6145-00-218-7831
NSN 6150-01-592-7516
NSN 6620-01-330-8802
NSN 5835-01-221-8811
NSN 6320-01-504-3948
NSN 6130-00-132-3267
NSN 5985-00-436-7090
NSN 7035-01-419-1462