1.25" overall length 0.750" overall width radius block, aluminum al aly 2024 T3, T3510 or T3511 per astm B221; or 2024-T3 per qq-a-250/4; or 2024-T4 per qq-a-225/6, anodize per mil-a-8625 or chemical film per mil-c-5541, prime zinc chromate one coat per tt-p-1757 anodize surface treated
