MS17313A (NOTICE 1), MILITARY STANDARD: INDICATOR, GYRO HORIZON, MANUALLY CAGED, ELECTRIC, TYPE MB-1 (03 DEC 1990) [NO SUPERSEDING DOCUMENT]
MS17313A (NOTICE 1), MILITARY STANDARD: INDICATOR, GYRO HORIZON, MANUALLY CAGED, ELECTRIC, TYPE MB-1 (03 DEC 1990) [NO SUPERSEDING DOCUMENT].