S-91102A044 1.789" ID x 2.679" 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
• Zinc-plated steel construction provides excellent corrosion protection for extended service life
• Rockwell C38 hardness rating ensures exceptional durability and spring tension retention
• Precision 1.789" ID design guarantees perfect fit for 1 3/4" screw applications
• ASME B18.21.1 compliance delivers reliable performance meeting industry standards
• Heavy-duty 0.389" thickness provides maximum load distribution and locking force
• Environmental compliance with RoHS 3 and REACH regulations for safe industrial use

Professional Applications & Engineering Value

This split lock washer delivers critical vibration resistance in demanding mechanical assemblies where fastener security is paramount. The zinc-plated steel construction combines corrosion protection with the necessary spring action to maintain constant tension under dynamic loads. Engineered to ASME B18.21.1 standards, this heavy-duty component excels in industrial machinery, construction equipment, and transportation applications where vibration-induced loosening can compromise system integrity. The Rockwell C38 hardness ensures the split lock design maintains its spring characteristics through repeated compression cycles, providing reliable performance in critical 1 3/4" screw fastening systems that demand consistent clamping force.

Specification Summary & Compliance

This standard split lock washer features precise dimensions of 1.789" ID x 2.679" OD with 0.389" thickness, manufactured to ASME B18.21.1 specifications for inch-series fasteners. The component maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility while delivering reliable mechanical performance in industrial applications requiring vibration-resistant fastening solutions.