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   Data updated: 16 Jan 2026. Home |  About Quick Search |  ASSIST |  ASSIST Updates Document Details

Document ID:   MIL-HDBK-1559       Scroll down to access document images

Overview
Title:  Numbers, Serial, Aircraft Gas Turbine Engine and Engine Module Assignment of
Scope:  This handbook describes the method of assignment and arrangement of letters and numerals used by the Military Services to identify complete engines and modules (major subassemblies thereof) as to the manufacturer and series in production. The engine/module serial number will be the only one required for assignment and application to the complete engine and modules thereof. This handbook applies to propulsion engines and airborne auxiliary power units.
Status:  Active Document Date:  25-FEB-2021      
  Next Review Due:  23-FEB-2031
SESS Doc Category:   Department of Defense Handbook  

Responsibilities
Lead Standardization Activity:  SE  Director, Systems Engineering  
  Preparing Activity: 11  Air Force Life Cycle Management Center - Aircraft Systems
Coordination:  Full  
Army Custodian:  AV   Combat Capabilities Development Command, Aviation and Missile Center  
Air Force Custodian:  11   Air Force Life Cycle Management Center - Aircraft Systems  

Changes to military standards or handbooks issued after August 1, 2003 are incorporated in the modified document.
Revision History Click on column headings for a description of column content.
MediaDocument Part DescriptionDist StmtDocument DatePagesSize
Document ImageRevision A A25-FEB-20217176.2 KB
Document ImageNotice 2 - ValidationA22-APR-201412.0 KB
Document ImageBase Document A14-FEB-19974160.7 KB

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