This is American Pneumatic Tool part number 1280583625, listed as 18893 before the renumbering cylinder closed nose – 8″, stocked at Crowder Supply as APT18893. It carries the piston and the port timing for the rivet buster. Bore wear is gradual, so it is usually diagnosed by falling performance rather than a breakdown.
The published breakdown lists it on the 633 133 1133 CN Rivet Buster and 133CN T-Handle Rivet Buster. Check it against the reference number on the diagram first; serial breaks change what fits.
If you need the parts around it, the parts diagram hub has the full breakdown library, and the APT lineup covers the machines themselves. Ships from our Denver warehouse; in-stock parts ordered by 4 PM ET go out the same day.
- Part number: 1280583625
- Previous part number: 18893
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT18893
- Listed on breakdowns for: 633 133 1133 CN Rivet Buster, 133CN T-Handle Rivet Buster
