Steel; 9.312 in. Lg; includes 1 sleeve p/n 8390316, o/d 1.750 in. By 0.156 in. Wall thickness; 1 collar p/n 8390315, inside diameter 1.175 in; o/a diameter 3.000 in.; welded in accordance with specification 57-206-4, use electrode type i specification 57-203-1, 125 microinch surface machine finish