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 5915-00-167-4877
NSN 6320-01-333-5782
NSN 5996-01-362-7068
NSN 6650-00-658-9627
NSN 6240-01-053-0666
NSN 6150-00-235-6293
NSN 6130-01-117-5862
NSN 5910-01-500-4594
NSN 6150-00-837-2454
NSN 5960-00-765-4524
NSN 6645-01-150-2039
NSN 5920-01-058-4961