Pratt & Whitney JT8D / J52 third stage Compressor Blade. P/N 745603. It is used in average condition but I have no paperwork for it so it is sold as a nonairworthy blade, for display only. It is a very interesting item and it shows very well and it would make an excellent show item for the home or office. The Pratt & Whitney JT8D was extensivelly used by civilian aircraft around the world such as the Boeing 727, Boeing 737, the DC-9 and MD-80 and it is still used today under the J52 turbojet designation primarily by the military on aircraft such as the A-6 Intruder, etc.