S-91101A033 0.512" ID x 0.869" OD ASME B18.21.1 Split Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance prevents fastener loosening in high-stress industrial environments
• Precision 0.512" inner diameter ensures perfect fit for 1/2" screws without slippage
• Rockwell C38 hardness rating provides exceptional durability and spring tension retention
• ASME B18.21.1 compliance guarantees consistent quality and dimensional accuracy
• RoHS 3 and REACH compliance ensures environmental safety and regulatory acceptance
• 0.869" outer diameter design offers optimal bearing surface for secure fastening applications
• Standard split lock configuration delivers reliable performance across diverse industrial applications

Professional Applications & Engineering Value

This steel split lock washer provides critical vibration-dampening capabilities for industrial machinery, automotive assemblies, and heavy equipment applications. Engineered with Rockwell C38 hardness, the washer maintains consistent spring action under repeated loading cycles, preventing fastener loosening in high-vibration environments. The standard split lock design creates continuous tension that compensates for thermal expansion and material settling. With precise 0.512" ID matching for 1/2" screws, this component ensures secure fastening in critical joints while meeting rigorous ASME B18.21.1 standards for dimensional accuracy and performance reliability in demanding industrial settings.

Specification Summary & Compliance

This split lock washer features dimensional specifications of 0.512" ID, 0.869" OD, and 0.125" thickness, manufactured to ASME B18.21.1 standards for consistent quality and performance. The component maintains Class 2A thread compatibility and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial applications.