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 5855-01-581-3570
NSN 5975-00-847-8850
NSN 5920-00-185-9587
NSN 5950-01-321-4002
NSN 5915-01-269-0890
NSN 6150-01-116-6895
NSN 5855-01-629-2882
NSN 6105-01-027-1135
NSN 6110-00-223-8684
NSN 6650-01-240-2334
NSN 5990-00-465-4903
NSN 2925-01-065-0060