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 6135-01-159-9705
NSN 6105-01-495-4060
NSN 5915-00-407-2910
NSN 6650-01-469-0272
NSN 5990-00-707-0731
NSN 2925-01-140-8957
NSN 6610-01-125-9899
NSN 6220-01-589-2241
NSN 2925-01-376-6760
NSN 5996-01-467-9391
NSN 6650-01-324-4726
NSN 6135-01-559-5417