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 6650-00-938-9233
NSN 5990-01-416-6009
NSN 2925-00-595-7525
NSN 7035-00-408-8170
NSN 6620-00-307-3024
NSN 5905-00-395-4168
NSN 6240-01-048-3330
NSN 6145-00-954-8737
NSN 5960-01-224-8022
NSN 6240-01-191-5643
NSN 7035-00-153-3826
NSN 5965-01-556-4337