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 5905-01-382-8904
NSN 6220-00-299-7749
NSN 6610-01-463-8866
NSN 5999-01-391-2532
NSN 5905-01-419-9703
NSN 6110-00-973-4020
NSN 5960-01-474-4843
NSN 5910-01-153-2392
NSN 5835-00-198-4936
NSN 5945-00-368-2593
NSN 5910-01-154-3088
NSN 6110-01-507-4452