MIL-DTL-2-58 Valve, Cylinder, Gas: Argon, Helium, Nitrogen, Neon, Xenon, And Krypton \(Inert-Oil Free\), Outlet 677 \(Pressures 5501 Through 7500 Psig \(38000 Through 51700 Kpa\) At 120 Deg. F \(48.9 Deg. C\)\) \(S/S By A-A-59860\)