"ITHIS ITEM HAS MOUNTING HOLES IN POSITIONS 1,3 & 5. SIMILAR ITEM WITH MOUNTING HOLE POSITION 2, 4 & 6 IS 2510-01-480-1413. MATERIAL IAW QQ-A-601 EXCEPT MATERIAL TO BE A356 OR A355 WITH 30,000 PSI MIN. YIELD STRENGTH. MACHINED SURFACES AND BOLT HOLES TO BE FREE OF PRIMER, PAINT. FINISH: METAL CONDITIONER PER MIL-M-10578; CHEMICAL FILM PER MIL-C-5541; PRIMER PER TT-P-666, ENAMEL WHITE PAINT PER TT-E-529. DRAWING CALLS THIS ITEM SUPPORT, ENGINE MOUNT LOWER."