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 5910-01-245-9735
NSN 5935-00-054-6641
NSN 5920-01-434-8504
NSN 5935-00-285-2767
NSN 6150-01-433-2107
NSN 6150-01-226-0624
NSN 5975-00-883-5806
NSN 6150-01-563-8661
NSN 6150-01-277-0574
NSN 6220-01-642-4555
NSN 6240-00-501-7964
NSN 6610-00-124-9525