O-Ring, Chicago Pneumatic part number 4700W65096, listed at Crowder Supply as CP-4700W65096. It keeps air or oil where it belongs inside the tool. Once it flattens or hardens, the machine loses pressure across the joint and performance falls off gradually rather than all at once.
Give us the model and serial off your machine and we will confirm the fit; the full diagram library and the CP tool catalog are the other two places to start. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 4700W65096
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-4700W65096