S-92164A032 0.448" ID x 0.76" OD ASME B18.21.1 External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through external teeth that bite into mating surfaces, preventing loosening under dynamic loads
• Excellent corrosion resistance from bronze construction, ideal for harsh industrial environments and marine applications
• Optimal hardness performance with Rockwell B60 rating ensuring durability without compromising material flexibility
• Precise dimensional compatibility with 7/16" fasteners (0.448" ID, 0.76" OD) for reliable fit and consistent clamping force
• Industry-standard compliance with ASME B18.21.1 specifications for guaranteed mechanical performance and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict international regulatory requirements
• Enhanced load distribution with thin profile (0.032-0.040") design that maintains structural integrity while minimizing space requirements

Professional Applications & Engineering Value

This bronze external tooth lock washer delivers critical vibration-resistant performance in demanding industrial applications where fastener security is paramount. The bronze material provides natural corrosion resistance, making it ideal for marine equipment, chemical processing systems, and outdoor machinery exposed to moisture and corrosive elements. The external tooth configuration creates positive locking action by embedding into both the fastener head and base material, effectively preventing rotational loosening caused by machinery vibrations, thermal cycling, and dynamic loads. Engineered to ASME B18.21.1 standards, this 7/16" washer ensures precise dimensional accuracy and reliable performance in assembly operations. The combination of Rockwell B60 hardness and bronze composition offers optimal balance between strength and malleability, preventing galling while maintaining locking effectiveness across repeated installation cycles.

Specification Summary & Compliance

This external tooth lock washer features precise inch dimensions with 0.448" internal diameter, 0.760" outer diameter, and thickness ranging 0.032-0.040". Manufactured to exacting ASME B18.21.1 specifications, it ensures proper tooth geometry and mechanical properties for reliable locking performance. The washer maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no restricted substances while meeting current environmental safety standards for industrial components. The bronze construction with Rockwell B60 hardness provides consistent material properties and dimensional stability across production batches.