Rockwell American Trailer Spindle Castle Nut – 1-3/4"-12 Thread, 6-Slot
Part Number: Refer to Rockwell American application
This Rockwell American trailer spindle castle nut is used on heavy-duty trailer axle spindles requiring a 1-3/4"-12 thread. Castle nuts are designed to secure the outer bearing and hub assembly while allowing cotter pin indexing through the spindle.
This nut features a raw finish and six-slot design commonly found on Rockwell American axle assemblies used in higher-capacity trailer applications.
Features
- Spindle castle nut for trailer axle applications
- 1-3/4"-12 internal thread
- Six-slot design for cotter pin retention
- Raw finish
- Commonly used on Rockwell American heavy-duty axles
Specifications
| Specification | Detail |
|---|---|
| Thread Size | 1-3/4"-12 |
| Slot Count | 6 |
| Finish | Raw |
| Typical Axle Ratings | 12K–16K trailer axles |
| Application Type | Trailer spindle / hub retention |
Castle nuts must be properly adjusted and secured with a compatible cotter pin. Always verify spindle thread size, axle manufacturer, and hub configuration before installation. Refer to manufacturer documentation for exact fitment requirements.