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 6685-00-175-0669
NSN 5945-00-096-4438
NSN 5990-00-518-0684
NSN 5895-01-542-5206
NSN 5835-01-525-3220
NSN 5985-01-091-3386
NSN 5935-01-560-3492
NSN 4140-01-336-0043
NSN 6650-01-344-9410
NSN 5998-00-402-5542
NSN 6645-00-049-6713
NSN 5925-01-466-5271