Ring Klip Part Number 12000029, Used on Craftsman, Poulan, Husqvarna, Wizard, and More.
Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, and Weed Eater 12000029 Ring Clip.  Current part number 12000029 replaces previous part numbers 812000029, 53212000029, and 5022P.  Ring is used as a clip (Clip) to hold the front wheel on the axle and also used on some models to retain the steering crank assembly.