Ordering by number: this is 470W740280, the Chicago Pneumatic seal holder – 30/40. Seals like this one are consumables in a tool they are cheap, they age with heat and hours, and replacing the whole set during a teardown saves a second strip-down later.

If you are working from a machine rather than a part number, start at the parts breakdown index, or send us the model and serial and we will match it. Machines themselves are on the Chicago Pneumatic tool range. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.

• Part number: 470W740280
• Manufacturer: Chicago Pneumatic
• Crowder SKU: CP-470W740280