"MATERIAL,6061&T6 ALUMINUM ALLOY,0.930 INCH THICK PER QQ&A&250&11. DIMENSIONS,LENGTH,6.000 INCHES,WIDTH,4.630 INCHES. FINISH,CHEMICAL FILM ALODINE 1200 PER MIL&C&5541 CLASS 1A,BLACK COATING FED&STD&595,COLOR NO. 37038 PER MIL&C&2270,CLASS 2,TYPE THREE"