"Material: aluminum alloy, T6 casting composition, Alloy No. A356 FEB SPECQQ-A-596; Length 14.0 ins, Height 5.56ins, Width 9.025 INS. Inspect castings in accordance with MIL-C-6021, Class 2B Grade D and Class 2A, Grade B. Final protective finish: clean and treat per MIL-STD-130: 19207-12279338."