This is the Chicago Pneumatic hinge pin part number F026961 (also carried as 3310103860), Crowder SKU CP-F026961. It locates or retains an assembly inside the pump. Small as it is, a sheared or walked-out pin lets a whole subassembly shift.
It appears on the CP 0077 Sludge Pump breakdown. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the parts breakdown index has the full breakdown library, and the Chicago Pneumatic tool range covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: F026961
- Also listed as: 3310103860
- Manufacturer: Chicago Pneumatic
- Crowder SKU: CP-F026961
- Listed on breakdowns for: CP 0077 Sludge Pump

