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 5945-01-316-7669
NSN 5915-01-317-0258
NSN 5925-00-202-8715
NSN 6240-01-585-7753
NSN 5895-01-320-6295
NSN 6130-01-188-0332
NSN 6320-01-374-9924
NSN 6145-01-390-0699
NSN 6105-00-690-9737
NSN 5920-01-010-7101
NSN 6130-01-626-9543
NSN 6150-01-480-7569