S-92164A033 0.513" ID x 0.9" OD ASME B18.21.1 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with external teeth that bite into mating surfaces, preventing loosening under dynamic loads
• Excellent corrosion resistance from bronze material, ideal for harsh industrial environments and extended service life
• Consistent hardness and durability with Rockwell B60 rating, ensuring reliable performance and reduced wear over time
• Precise dimensional fit with 0.513" ID and 0.9" OD, designed specifically for secure 1/2" screw applications
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing interchangeability and quality assurance
• Environmental safety assurance through RoHS 3 and REACH compliance, meeting strict regulatory requirements
• Optimized thickness range (0.037-0.045") provides ideal spring tension and seating for various assembly conditions

Professional Applications & Engineering Value

This Bronze External Tooth Lock Washer delivers critical engineering solutions for applications where vibration-induced loosening poses significant reliability risks. The bronze material composition offers natural corrosion resistance while maintaining excellent mechanical properties, making it ideal for marine, chemical processing, and outdoor industrial equipment. The external tooth configuration creates multiple biting points that dig into both the fastener and workpiece, distributing clamping force evenly and maintaining bolt preload under extreme conditions. Engineered specifically for 1/2" screw applications, this washer provides dependable locking performance in heavy machinery, power transmission systems, and structural assemblies where safety and maintenance intervals are paramount concerns. The combination of Rockwell B60 hardness and precise dimensional control ensures consistent performance across production runs and replacement scenarios.

Specification Summary & Compliance

This external tooth lock washer features inch system dimensions with 0.513" internal diameter, 0.9" external diameter, and thickness ranging 0.037-0.045". Manufactured to ASME B18.21.1 specifications for tooth lock washers, ensuring dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, including the latest SVHC updates, making it suitable for global industrial applications with strict environmental requirements.