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 5925-01-259-5198
NSN 6145-01-582-8435
NSN 6105-00-854-2606
NSN 5999-00-202-0788
NSN 5895-01-356-3990
NSN 6620-01-423-2612
NSN 6110-01-135-2027
NSN 6130-00-412-8191
NSN 5935-01-277-0767
NSN 5999-00-290-5898
NSN 6240-00-045-9844
NSN 5960-01-580-6360