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 5990-01-481-6814
NSN 6130-00-752-2584
NSN 5910-00-451-2293
NSN 6320-00-194-4252
NSN 6240-01-063-7685
NSN 5835-00-647-2104
NSN 5996-01-133-2478
NSN 5905-01-087-0281
NSN 6105-01-437-0493
NSN 2925-00-180-2532
NSN 4140-01-161-8075
NSN 5975-01-449-0694