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 6150-01-046-0247
NSN 5855-01-175-2465
NSN 5998-00-101-0684
NSN 6645-01-554-0609
NSN 6685-01-324-4710
NSN 6135-01-303-0295
NSN 5915-00-006-1255
NSN 5945-01-183-3768
NSN 6130-00-505-1165
NSN 5996-01-338-0555
NSN 6620-00-797-2591
NSN 6620-01-358-9688