MIL-I-27683A (NOTICE-1), MILITARY SPECIFICATION: INDICATOR, TORQUE METER AEU-3/A, ENGINE DUAL (16-MAY-1977) [NO S/S DOCUMENT]

MIL-I-27683A (NOTICE-1), MILITARY SPECIFICATION: INDICATOR, TORQUE METER AEU-3/A, ENGINE DUAL (16-MAY-1977) [NO S/S DOCUMENT]., Cancelled without replacement.