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 5920-00-261-9848
NSN 4140-01-562-0499
NSN 6645-01-523-8809
NSN 5935-01-300-1860
NSN 5975-01-277-4372
NSN 5855-01-254-3041
NSN 6110-00-956-7472
NSN 6110-01-398-6928
NSN 6150-00-295-2662
NSN 4140-01-569-1158
NSN 6645-01-086-7668
NSN 5835-01-416-6455