O-Ring is the American Pneumatic Tool service part carried under part number 1280179538, previously 19437. Its job is to hold the pressure boundary between two mating faces; a hardened or nicked seal shows up as lost power and a damp housing well before anything else fails.
It is called out in the parts diagram for the 133CN T-Handle Rivet Buster and 1133CN T-Handle Rivet Buster. The complete machine is the APT 133 Pneumatic Rivet Buster. Compare it to the reference callout on the diagram to be sure it is the position you need.
Need the parts around it? They are on the same breakdown, and the parts diagram library covers every machine we publish. Stocked in Denver orders placed by 4 PM ET ship the same day when the part is on the shelf.
- Part number: 1280179538
- Previous part number: 19437
- Manufacturer: American Pneumatic Tool
- Crowder SKU: APT19437
- Listed on breakdowns for: 133CN T-Handle Rivet Buster, 1133CN T-Handle Rivet Buster
