MIL-I-5099B (AMENDMENT-1), MILITARY SPECIFICATION: INDICATOR, CABIN AIR PRESSURE, 1-7/8 INCH DIAL, TYPE MA-1 (11-FEB-1980) [S/S BY MIL-DTL-5099C]
MIL-I-5099B (AMENDMENT-1), MILITARY SPECIFICATION: INDICATOR, CABIN AIR PRESSURE, 1-7/8 INCH DIAL, TYPE MA-1 (11-FEB-1980) [S/S BY MIL-DTL-5099C]., This amendment forms a part of Military Specification MIL-I-5099B
dated 13 December 1968.