S-5185N135 0.641" ID x 1.073" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through the split lock design that maintains constant tension and prevents fastener loosening in high-stress environments
• Exceptional corrosion protection with zinc-flake coating that provides durable surface protection against harsh industrial conditions
• Reliable hardness performance with Rockwell C38 rating ensuring consistent spring action and long-term dimensional stability
• Precision dimensional fit with 0.641" ID and 1.073" OD engineered for exact compatibility with 5/8" fasteners
• Industry-standard compliance meeting ASME B18.21.1 specifications for guaranteed quality and interchangeability
• Enhanced durability with 0.156" thickness providing optimal spring force and resistance to deformation under load
• Environmental responsibility through RoHS 3 and REACH compliance, ensuring safe use in regulated applications

Professional Applications & Engineering Value

This zinc-flake-coated steel split lock washer delivers critical vibration resistance in demanding industrial applications where fastener security is paramount. The split lock design creates continuous spring tension that counters rotational forces, preventing loosening in machinery, automotive assemblies, and structural frameworks exposed to dynamic loads. The zinc-flake coating provides superior corrosion resistance compared to conventional platings, extending service life in harsh environments while maintaining consistent locking performance. Engineered to ASME B18.21.1 standards, this 5/8" washer ensures reliable performance in heavy-duty applications where vibration-induced failure is not an option, making it ideal for construction equipment, industrial machinery, and transportation systems requiring dependable fastener security.

Specification Summary & Compliance

This split lock washer features precise dimensions of 0.641" ID x 1.073" OD with 0.156" thickness, specifically designed for 5/8" screw applications. Manufactured to ASME B18.21.1 specifications with Rockwell C38 hardness, ensuring consistent quality and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial components.