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 2925-01-089-6269
NSN 6645-01-477-9292
NSN 5920-01-484-8759
NSN 5835-00-918-8169
NSN 5985-01-445-6572
NSN 5915-01-142-8716
NSN 5915-01-233-0892
NSN 5855-00-433-2377
NSN 5990-01-021-7303
NSN 5895-00-495-0733
NSN 5996-00-205-2933
NSN 5999-01-469-7481