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 6610-00-421-9853
NSN 6620-01-449-3101
NSN 6620-00-233-6839
NSN 5905-01-658-2520
NSN 6110-01-277-2563
NSN 5985-01-428-9394
NSN 6650-01-407-4653
NSN 5998-00-466-3001
NSN 5910-01-513-9888
NSN 5985-01-085-4408
NSN 5915-01-623-5986
NSN 5925-01-283-5889