MIL-DTL-2-44 Valve, Cylinder, Gas: Butane, Propane, Butane-Propane Mixture, Mapp, And Propylene \(Maximum 200 Pound Nominal Capacity Cylinder\), Outlet 510 \(Pressures Through 500 Psig \(3450 Kpa\) At 70 Deg. F \(21.1 Deg. C\)\) \(S/S By A-A-59860\)