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 6620-00-900-3986
NSN 6130-01-592-6285
NSN 5965-01-649-1279
NSN 6150-01-205-7225
NSN 5998-01-181-2074
NSN 6145-00-153-2818
NSN 5935-01-589-6402
NSN 6105-01-035-1065
NSN 5935-01-130-8542
NSN 6645-01-363-9790
NSN 7035-01-606-0612
NSN 5920-01-433-1668