Secure your wheel-end assembly with the Dayton 06-422 Spindle Nut Washer. Designed for heavy-duty performance, this lock-ring style washer is engineered to match the fit and function of original equipment on Rockwell and Dana axles. Featuring a "with holes" design for precise indexing on tapered spindles, it provides a reliable locking mechanism essential for steer, drive, and trailer applications.
Direct Replacement: Precision-engineered to match the factory dimensions and function for specified Rockwell and Dana axle systems.
The Ideal Solution: A dependable replacement for washers that are missing, distorted, or have failed due to mechanical wear.
Durable Construction: Manufactured from high-quality materials to ensure a long service life and reliable performance under heavy loads.
Trusted Engineering: Backed by over a century of automotive expertise and a U.S.-based team of product specialists.
| Attribute | Specification |
| Part Number | 06-422 |
| Part Type | Spindle Nut Washer |
| Washer Type | Lock Rings (with holes) |
| Spindle Type | Tapered |
| Application | Rockwell FU; Dana A45, A65 |
| Axle Type | Steer; Drive; Trailer |
| Inner Diameter (ID) | 3.37 in |
| Outer Diameter (OD) | 5.00 in |
| Height | 0.21 in |
| Weight | 0.60 lbs |
| Associated Kit | 06-4211 |
This part is a direct functional equivalent to the following OEM and industry part numbers:
Rockwell/Meritor: 1229-V-48
Dana: M10HN112
Spicer: 12-421, 12421
PACCAR: L1357
VMRS: 011-001-017
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