This is Chicago Pneumatic part number 9245996860 retainer – complete jumbo, stocked at Crowder Supply as CP-9245996860. It holds the working steel in the tool. Retention hardware is a wear and safety item a stretched or cracked retainer lets the steel move, which chews the front head.

The full diagram library is where to start if you are working back from a machine or send the model and serial and we will confirm it. Complete tools sit on the CP tool catalog. Denver stock, with same-day shipment on in-stock orders in by 4 PM ET.

• Part number: 9245996860
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-9245996860