S-92507A130 0.522" ID x 0.879" OD ASME B18.21.1 Oversized Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents loosening under dynamic loads, ensuring long-term joint integrity
• Zinc-plated steel construction provides excellent corrosion protection for extended service life in harsh environments
• Precision 0.522" ID and 0.879" OD dimensions guarantee perfect fit with 1/2" fasteners and proper bearing surface distribution
• Rockwell C38 hardness rating delivers exceptional durability and maintains spring tension through repeated loading cycles
• ASME B18.21.1 compliance ensures consistent quality and performance meeting industry standards
• RoHS 3 and REACH compliance makes these washers suitable for regulated industries and global supply chains
• Standard split lock design offers reliable, cost-effective locking for general industrial applications

Professional Applications & Engineering Value

This zinc-plated steel split lock washer addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and construction equipment. The split lock design creates continuous spring tension that compensates for thermal expansion, material relaxation, and dynamic stresses. The 0.522" ID provides precise alignment with 1/2" screws while the 0.879" OD ensures optimal load distribution. Manufactured to ASME B18.21.1 specifications, these washers maintain consistent performance in high-vibration environments where fastener security is paramount. The zinc plating offers sacrificial corrosion protection, extending service life in demanding applications while meeting environmental compliance requirements.

Specification Summary & Compliance

This split lock washer features precise dimensional tolerances with 0.522" inner diameter, 0.879" outer diameter, and 0.125" thickness specifically engineered for 1/2" screw applications. Manufactured in compliance with ASME B18.21.1 standards for dimensional and mechanical properties, it maintains Rockwell C38 hardness for consistent spring performance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 06/14/2023, 235 SVHC), meeting international regulatory requirements for industrial components.