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 6645-01-274-8770
NSN 6645-00-864-6794
NSN 5975-00-753-6864
NSN 6240-00-923-0758
NSN 5990-01-344-7778
NSN 5985-00-100-4902
NSN 5915-00-695-1931
NSN 5895-00-021-4523
NSN 6150-01-106-4678
NSN 6620-00-278-7313
NSN 5950-00-737-8295
NSN 6240-01-310-5043