O-ring .139w X .796 I.d. 34-40-4350

This is a genuine replacement part sourced directly from the manufacturer. The O-ring is commonly found in Milwaukee rotary hammers and chipping hammers. This part is made of flexible rubber, and is generally used in sealing the connection between components. It may be found in various locations in the machine, depending on model. Please be aware that there are different O-rings used in the machine. Refer to the parts diagram to be sure of ordering the correct part. You may require a screwdriver when replacing this item. The O-ring is sold as an individual replacement part.