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Stemco · Hardware & Fasteners
447-4723
In stock · ships from Knoxville
The Stemco Pro-Torq Spindle Nut 447-4723 is a single-piece axle nut designed to secure wheel bearings on heavy-duty truck and trailer axles.
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Verified fitment for 5 applications
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Fits axles with 3.480″-12 thread and HM518445/HM518410 outer bearing cones/cups. Not a universal truck part; verify axle specifications before purchase.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 24.
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It replaces traditional two-piece lock nut systems by maintaining correct bearing preload with an integrated locking keeper, simplifying installation and improving reliability. This nut is commonly replaced during routine bearing service, seal changes, or when the original nut becomes worn or stripped. It fits axles that use a 3.480‑12 thread and HM518445/HM518410 outer bearings.
Part Number: 447-4723
PRO TORQUE NUT
Unit: ea
Dealer: KP Services Crossville
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