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 5998-01-043-2189
NSN 5935-00-785-8377
NSN 6135-00-613-1068
NSN 2925-00-917-2842
NSN 7035-00-153-3826
NSN 6135-00-635-9187
NSN 5950-01-399-4576
NSN 6105-01-112-6347
NSN 5895-00-324-0578
NSN 5835-01-169-5330
NSN 5996-01-174-0830
NSN 6240-01-433-3648