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 6320-01-390-5385
NSN 2925-01-590-3981
NSN 5905-00-964-7402
NSN 5945-01-480-1777
NSN 6240-01-110-6235
NSN 6645-01-462-2101
NSN 6645-01-128-6932
NSN 5935-00-814-8755
NSN 5945-00-187-7764
NSN 6240-01-370-2518
NSN 4140-01-512-7286
NSN 5910-01-562-0623