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 5835-01-257-0154
NSN 6135-00-078-9931
NSN 5960-00-892-3809
NSN 5905-01-300-8893
NSN 6650-00-455-9457
NSN 5960-01-127-5425
NSN 5985-01-391-3860
NSN 5910-00-111-2065
NSN 5935-00-454-8690
NSN 6135-01-142-6456
NSN 6650-01-379-5262
NSN 6320-01-515-7913