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 2925-01-589-9136
NSN 5998-00-583-5541
NSN 5996-01-538-9357
NSN 5935-00-557-2942
NSN 5915-00-296-5031
NSN 6620-01-132-5190
NSN 5990-01-419-0661
NSN 2925-01-157-9204
NSN 6150-01-380-4045
NSN 6240-00-869-5079
NSN 6650-01-373-1580
NSN 6110-00-271-9928