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 5996-01-525-9478
NSN 5990-01-362-5373
NSN 5945-01-580-6831
NSN 6610-00-061-7882
NSN 6145-01-451-4599
NSN 6620-00-635-7347
NSN 5996-01-241-4775
NSN 5990-01-619-0935
NSN 5925-01-176-8415
NSN 6220-01-237-2488
NSN 5925-00-078-9566
NSN 5998-01-443-8627