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 6145-00-775-0786
NSN 4140-01-062-6088
NSN 6130-00-100-0175
NSN 5998-00-279-3407
NSN 6105-01-152-4572
NSN 7035-01-604-1857
NSN 6110-01-368-9249
NSN 4140-01-392-0495
NSN 6320-00-790-4844
NSN 5999-01-184-5607
NSN 5998-01-201-2861
NSN 5925-01-643-3574