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 5835-00-233-6327
NSN 5975-01-374-8597
NSN 6620-01-386-5543
NSN 5960-00-099-9790
NSN 5925-00-913-9784
NSN 5945-01-020-7897
NSN 5975-01-604-4577
NSN 6135-01-440-9412
NSN 5990-01-254-2936
NSN 6110-00-864-0947
NSN 6240-01-185-7708
NSN 5996-01-123-5768