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 6620-01-295-5341
NSN 6620-01-222-5555
NSN 6240-01-609-4783
NSN 5998-01-188-2911
NSN 5998-01-364-9192
NSN 6105-00-480-2728
NSN 5930-00-361-2132
NSN 5999-00-401-6788
NSN 5905-00-993-1832
NSN 5835-00-399-5358
NSN 5998-01-589-3601
NSN 5975-01-069-8832