S-95795A053 0.64" ID x 1.62" OD ASME B18.21.1 Internal / External-Tooth Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance with dual internal/external teeth design that bites into mating surfaces to prevent loosening under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction, extending service life in demanding industrial environments
• Optimized load distribution with precise 0.64" ID and 1.62" OD dimensions that perfectly fit 5/8" fasteners while minimizing surface damage
• Exceptional hardness retention with Rockwell C40 rating ensuring teeth maintain gripping performance through repeated tightening cycles
• Reliable compliance assurance meeting ASME B18.21.1 standards for dimensional accuracy and mechanical performance
• Environmental responsibility with full RoHS 3 and REACH compliance, safe for various industrial applications
• Consistent thickness control (0.060-0.064") ensuring uniform clamping force and predictable performance in assembly operations

Professional Applications & Engineering Value

This heavy-duty tooth lock washer delivers critical vibration resistance for industrial machinery, automotive assemblies, and structural applications where dynamic loads threaten fastener integrity. The unique internal/external teeth configuration creates multiple biting points that dig into both the fastener head and base material, effectively resisting rotational forces that cause conventional washers to fail. Manufactured from zinc-plated steel, these washers provide essential galvanic protection while maintaining the Rockwell C40 hardness needed to prevent tooth deformation during high-torque installations. The precisely engineered tooth geometry ensures maximum surface contact without damaging softer materials, making these 5/8 inch washers ideal for vibration-prone equipment, heavy machinery mounting systems, and critical structural connections where safety depends on fastener reliability.

Specification Summary & Compliance

This tooth lock washer features inch system dimensions with 0.64" internal diameter and 1.62" outer diameter, manufactured to exacting thickness specifications of 0.060-0.064". The component meets ASME B18.21.1 standards for dimensional accuracy and mechanical properties, ensuring interchangeability and reliable performance in industrial applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and restricted substance adherence, while the Rockwell C40 hardness rating guarantees consistent mechanical performance across production batches.