TN13 Timken Locknut is a locknut made to be used with a lockwasher. Threaded onto a shaft or spindle, a lock nut holds a bearing or other component in its set position, and the lockwasher is the partner piece that helps the nut stay put once it is set. This is a genuine Timken part from Pro Gear and Transmission. If you are matching it to a bearing setup and want a second opinion on fit, give us a call.FeaturesTimken locknut, part number TN13Made to be used with a lockwasherHolds a bearing or other component in its set position on the shaftGenuine Timken part