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 6150-01-542-9571
NSN 5910-01-278-2003
NSN 5930-01-652-9034
NSN 7035-00-631-3782
NSN 5855-00-688-9954
NSN 6110-01-236-2957
NSN 6240-01-532-1810
NSN 5930-00-339-8637
NSN 5895-01-227-5841
NSN 6130-01-063-7446
NSN 5960-01-305-5449
NSN 4140-01-491-5544