We had 1,000 pieces of these custom precision machined components manufactured domestically in the USA to serve as housing parts in a defense article production application.  Aluminum alloy 2011 (Temper T3) material was used for the production and the parts were set for MIL-STD-171 compliant black dye.  Dimensional requirement were fairly precise with tolerance at +.000/-.001 for most specifications.  Full FAIR and documentation was included with the parts per customer requirements.