Washer, Chicago Pneumatic part number 470W214833, listed at Crowder Supply as CP-470W214833. It spreads clamp load and protects the face under the fastener routine hardware, but the wrong one changes how the joint holds torque.

Give us the model and serial off your machine and we will confirm the fit; the parts breakdown index and the CP tool catalog are the other two places to start. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.

• Part number: 470W214833
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-470W214833