S-92962A123 1.28" ID x 1.79" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance due to the split lock design that maintains constant spring tension under dynamic loads
• Enhanced corrosion protection with black-oxide steel finish for extended service life in demanding environments
• Reliable hardness performance with Rockwell C38 rating ensuring consistent spring action and load distribution
• Precision dimensional compatibility with 1.28" ID specifically engineered for 1 1/4" screw applications
• Industry-standard compliance meeting ASME B18.21.1 specifications for guaranteed interchangeability and performance
• Environmental regulation adherence with RoHS 3 and REACH compliance for global supply chain compatibility
• Robust construction featuring 0.313" thickness for heavy-duty applications requiring maximum locking force

Professional Applications & Engineering Value

This black-oxide steel split lock washer delivers critical vibration resistance in high-stress mechanical assemblies where loosening under dynamic loads poses significant operational risks. The 1.28" internal diameter provides precise fitment for 1 1/4" screw applications in heavy machinery, industrial equipment, and structural frameworks. Engineered to ASME B18.21.1 standards, these washers maintain consistent spring tension through the Rockwell C38 hardness rating, ensuring reliable performance in vibration-prone environments. The black-oxide surface treatment offers superior corrosion resistance compared to plain steel, extending component life in humid or chemically aggressive industrial settings while the 0.313" thickness provides the necessary deflection for optimal locking force in demanding applications.

Specification Summary & Compliance

This split lock washer features precise dimensional specifications with 1.28" ID, 1.79" OD, and 0.313" thickness designed for 1 1/4" screw applications. Manufactured in compliance with ASME B18.21.1 standards for standard lock washers, the component meets Rockwell C38 hardness requirements for consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications and supply chain requirements.