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 6650-00-479-9329
NSN 6650-00-677-2577
NSN 6610-01-381-3181
NSN 5920-00-927-5568
NSN 5960-01-491-9916
NSN 5835-01-302-2745
NSN 2925-01-387-0870
NSN 5990-01-113-8121
NSN 5910-00-433-6405
NSN 5950-01-378-6031
NSN 6220-01-240-8874
NSN 6105-01-447-2984