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 6145-00-114-0197
NSN 6240-01-202-2492
NSN 6105-00-420-2335
NSN 5999-01-086-5529
NSN 5920-01-130-5893
NSN 7035-01-145-5059
NSN 6320-00-790-4844
NSN 2925-01-350-8372
NSN 5835-00-226-7825
NSN 6130-01-532-7458
NSN 6130-00-988-3257
NSN 6150-01-150-5252