S-90127A117 0.489" ID x 1.074" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through spring steel construction, preventing fastener loosening in high-stress environments
• Enhanced locking performance with top-located serrations that bite into mating surfaces for maximum holding power
• Exceptional durability with Rockwell C40 hardness rating, maintaining structural integrity under repeated loading
• Reliable corrosion protection from zinc-plated steel construction, extending service life in industrial applications
• Precise dimensional compatibility with 7/16" screws, ensuring perfect fit and optimal performance
• Industry-standard compliance meeting RoHS 3 and REACH regulations for global manufacturing acceptance
• Optimized load distribution through precise 1.074" OD design, reducing surface pressure and material stress

Professional Applications & Engineering Value

This spring lock washer delivers critical engineering solutions for industrial applications where vibration-induced fastener failure is a primary concern. The zinc-plated steel construction provides essential corrosion resistance while maintaining the spring tension necessary for continuous locking force. The strategically placed top serrations create a mechanical interference that prevents rotational loosening, making it ideal for heavy machinery, automotive assemblies, and structural applications. With precise inch system measurements including 0.489" ID and 1.074" OD, this washer ensures perfect compatibility with 7/16" fasteners while the controlled thickness range of 0.075-0.082" provides consistent performance across production runs. The combination of Rockwell C40 hardness and spring steel material ensures the washer maintains its locking properties through thermal cycling and dynamic loading conditions.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.489" internal diameter, 1.074" outer diameter, and thickness range of 0.075-0.082" with overall height of 0.12". Manufactured to inch system standards for 7/16" screw applications, the component maintains Rockwell C40 hardness for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components. The zinc-plated steel construction ensures both corrosion resistance and reliable serration performance for long-term vibration resistance in demanding applications.