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 6685-00-520-4767
NSN 5998-01-035-5430
NSN 5950-00-375-6285
NSN 6240-01-462-1874
NSN 5915-01-003-7945
NSN 5835-01-180-9441
NSN 6105-01-316-4774
NSN 6110-01-095-3519
NSN 6650-00-824-5510
NSN 5965-00-450-5408
NSN 7035-00-003-7518
NSN 6130-01-341-4583