Solid stainless steel tapered keyed stepped shaft. 1/2-13 threaded end is on the small tapered/keyed end Tapered portion is approximately 4-1/4 inches in length Each of the 3 step up sections is approximately 1-9/16? in length The largest diameter and last section is approximately 9-3/8? long. I?m not positive of what specific application or machine, this part is for. Hopefully the part number on the end and my crude measurements are enough to properly identify it for one who may need it? The shaft does have a few minor cosmetic blemishes due to time in inventory. See pictures for more details and specifications Comes as pictured. Thanks for looking