The URO Parts Spindle Nut Washer - 013146 is a small, round metal washer designed to fit onto the spindle nut of a vehicle. It is used to help secure the spindle nut in place and prevent it from loosening. This particular washer is manufactured by URO Parts, a company that specializes in producing high-quality replacement parts for European vehicles. The washer is made from durable materials and is designed to withstand the rigors of everyday use. It is a vital component in ensuring the safe and smooth operation of a vehicle's wheels and suspension system.