MS28063A, MILITARY STANDARD: GAGES, PRESSURE, ENGINE AND UTILITY, 2-INCH, FLANGE- OR PORT-MOUNTED, BOTTOM PORT (13-AUG-1959)
MS28063A, MILITARY STANDARD: GAGES, PRESSURE, ENGINE AND UTILITY, 2-INCH, FLANGE- OR PORT-MOUNTED, BOTTOM PORT (13-AUG-1959).