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 6105-01-223-2733
NSN 6240-00-857-3785
NSN 5835-01-625-8604
NSN 6320-01-111-8851
NSN 5998-01-075-5624
NSN 5935-01-006-0136
NSN 6650-01-258-0811
NSN 5925-01-292-1101
NSN 5925-00-308-7295
NSN 5915-00-015-3841
NSN 5920-01-516-2893
NSN 6220-01-219-6294