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 5998-01-568-9340
NSN 6320-01-019-1028
NSN 6645-01-132-1862
NSN 6320-00-070-4544
NSN 6620-01-625-2855
NSN 6650-01-327-9403
NSN 5950-00-248-6921
NSN 6110-00-343-0220
NSN 5945-01-583-1514
NSN 6130-01-110-8151
NSN 5950-01-479-1224
NSN 6645-00-559-3623