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 5835-00-240-9838
NSN 6240-01-513-9642
NSN 6130-00-994-5110
NSN 6145-01-179-9547
NSN 5835-00-327-6192
NSN 5930-00-455-3046
NSN 5835-01-166-7420
NSN 4140-01-462-1336
NSN 2925-01-510-9378
NSN 6110-00-066-4548
NSN 6145-00-301-9124
NSN 2925-01-262-1418