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 5999-01-014-5981
NSN 5965-01-279-4806
NSN 4140-01-380-4441
NSN 6645-01-141-0310
NSN 5985-00-859-5061
NSN 5965-00-300-8055
NSN 5950-01-594-6456
NSN 6130-01-204-5137
NSN 4140-01-367-5824
NSN 6620-01-396-2149
NSN 6110-00-069-2942
NSN 5935-00-986-8012