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 5905-00-294-9445
NSN 5905-00-905-7636
NSN 6620-01-611-7907
NSN 5925-01-117-5068
NSN 6610-01-434-0289
NSN 5855-00-149-0766
NSN 5990-00-129-6651
NSN 6145-00-811-2254
NSN 5985-00-346-7024
NSN 2925-01-492-5342
NSN 6620-01-628-2620
NSN 6150-00-155-3578