US Department of Defense · 2003
← All references · MIL & Aerospace Specs
The canonical US military specification for anodic coatings on aluminium. Defines Type I (Chromic Acid Anodize), Type II (Sulphuric Acid Anodize), and Type III (Hard Anodize) chemistries, plus Class 1 (non-dyed) and Class 2 (dyed) finishes. Specifies coating-weight requirements, thickness ranges, salt-spray performance (per ASTM B117), and stripping tests. The reference specification cited internationally for defence, aerospace, and high-reliability industrial anodizing — including by Indian fabricators supplying defence OEMs. Revision F with Notice 1 is the current version.