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 7035-01-314-7559
NSN 5910-01-329-8689
NSN 6240-00-357-7976
NSN 5910-01-010-3694
NSN 6685-01-344-4751
NSN 6110-01-158-8008
NSN 6110-01-225-3207
NSN 6220-01-451-3056
NSN 5920-01-533-6720
NSN 5965-01-585-2473
NSN 5990-00-486-0506
NSN 5998-01-366-7397