S-5185N133 0.512" ID x 0.869" OD ASME B18.21.1 Split Lock Washers
Split Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance prevents fastener loosening in high-stress industrial environments
- Zinc-flake-coated steel construction provides excellent corrosion protection for extended service life
- Precision 0.512" ID and 0.869" OD dimensions ensure perfect fit for 1/2" screws and consistent performance
- Rockwell C38 hardness rating delivers exceptional durability and spring tension retention
- ASME B18.21.1 certification guarantees dimensional accuracy and reliable locking performance
- RoHS 3 and REACH compliance meets international environmental standards for safe industrial use
- Standard split lock design offers reliable, cost-effective vibration protection for various applications
Professional Applications & Engineering Value
These zinc-flake-coated steel split lock washers are engineered to solve critical vibration-induced loosening problems in industrial settings. The 0.512" ID provides precise compatibility with 1/2" screws, while the standard split lock washer design creates continuous spring tension that compensates for thermal expansion and vibration. The zinc-flake coating offers superior corrosion resistance compared to traditional plating methods, making these industrial lock washers ideal for machinery, automotive assemblies, and construction equipment where environmental factors and constant motion would compromise standard fasteners. The Rockwell C38 hardness ensures the washer maintains its spring properties through repeated loading cycles, providing reliable vibration resistance in demanding applications.
Specification Summary & Compliance
This split lock washer features precise dimensional specifications with 0.512" inner diameter, 0.869" outer diameter, and 0.125" thickness, manufactured to ASME B18.21.1 standards for dimensional accuracy and performance reliability. The washer meets Rockwell C38 hardness requirements and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining consistent locking performance in inch system applications.
