MIL-DTL-85110B(AS)
(Applications for copies should be addressed to the American Society for Testing and
Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.
SOCIETY FOR AUTOMOTIVE ENGINEERS (SAE)
Aerospace Material Specification (AMS)
SAE - AMS2770
-
Heat Treatment of Wrought Aluminum Alloy Parts
(DoD adopted)
2.4 Order of precedence. In the event of a conflict between the text of this document and
the references cited herein, the text of this document takes precedence. Nothing in this document,
however, supersedes applicable laws and regulations unless a specific exemption has been
obtained.
3. REQUIREMENTS
3.1 Materials. Materials shall conform to applicable specifications and shall be as specified
herein and on applicable drawings. Design shall make maximum use of standard parts, materials
and processes, rather than special or peculiar items. Materials, which are not covered by
government specifications or not specifically described herein, shall be approved by the acquiring
activity.
3.1.1 Metal parts. All metal parts shall be corrosion-resistant or treated in a manner to
render them resistant to corrosion. Unless protected against electrolytic corrosion, dissimilar
metals, as defined in MIL-STD-889, shall not be used in contact with each other. General design
information governing usage of metals is furnished in MIL-HDBK-5, Volumes 1 and 2. Metals
which are not covered by government specifications or which are not specifically described herein
shall be approved by the acquiring activity.
3.1.1.1 Heat treatment. Heat treatment of aluminum parts and steel parts shall be in
accordance with SAE-AMS2770 and MIL-H-6875, respectively. Heat treatment of titanium and
titanium alloy shall be in accordance with MIL-H-81200.
3.1.1.2 Magnetic particle inspection. Magnetic particle inspection of all ferromagnetic
materials shall be in accordance with ASTM-E1444.
3.1.1.3 Castings. Castings shall conform with the requirements of MIL-STD-2175. In
addition, aluminum alloy castings shall conform to the requirements of MIL-A-21180.
3.1.1.4 Forgings. Steel forging shall conform to the requirements of MIL-F-7190. Critical
steel forging shall meet the requirements for MIL-F-7190 Grade A forgings. Aluminum forgings
shall conform to the requirements of MIL-A-22771.
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