S-91104A047 0.766" ID x 1.265" 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 spring tension under dynamic loads
• Exceptional durability with Grade 8 strength classification and Rockwell C38 hardness for heavy-duty applications
• Enhanced corrosion protection from zinc yellow-chromate plating that extends service life in demanding environments
• Precise dimensional compatibility with 3/4" fasteners thanks to 0.766" ID and 1.265" OD measurements
• Reliable performance assurance through compliance with ASME B18.21.1 manufacturing standards
• Environmental compliance meeting REACH regulations for safe industrial use
• Optimal load distribution with 0.188" thickness providing stable bearing surface for high-torque applications

Professional Applications & Engineering Value

This Grade 8 split lock washer delivers critical vibration resistance in demanding industrial environments where fastener loosening can compromise system integrity. The zinc yellow-chromate plated steel construction provides dual protection against corrosion while maintaining the Rockwell C38 hardness required for high-stress applications. Engineered specifically for 3/4" fasteners in inch measurement systems, this heavy-duty washer prevents rotational slack in machinery, automotive assemblies, and structural frameworks. The split lock mechanism creates continuous spring action that counters vibrational forces, making it ideal for equipment subjected to constant motion or impact loads. With precise dimensions (0.766" ID × 1.265" OD × 0.188" thickness), this component ensures proper fit and function in critical industrial locking applications where reliability is non-negotiable.

Specification Summary & Compliance

This split lock washer features inch system dimensions with 0.766" internal diameter, 1.265" external diameter, and 0.188" thickness specifically engineered for 3/4" fasteners. Manufactured to ASME B18.21.1 specifications with Grade 8 strength classification and Rockwell C38 hardness rating. The standard split lock washer type ensures consistent performance across industrial applications. Compliant with REACH regulations (EC 1907/2006) as of June 14, 2023, containing no SVHCs above threshold limits, making it suitable for regulated industries requiring environmental compliance.