S-91812A823 1.59" ID x 2.3" OD Extreme-Vibration-Resistant Wedge Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through wedge lock design that maintains clamping force under extreme conditions
• Exceptional corrosion resistance with 316 stainless steel construction for harsh environments and chemical exposure
• Enhanced locking performance with dual serration technology on both top and bottom surfaces
• Long-term reliability ensured by case hardening to Rockwell C51 hardness for extended service life
• Versatile compatibility with both inch (1 1/2") and metric (M39) screw systems
• Precise dimensional fit with 1.59" ID and 2.3" OD for optimal load distribution
• Environmental compliance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This 316 stainless steel wedge lock washer delivers critical vibration-resistant performance in demanding industrial settings where traditional fasteners fail. The dual serration technology on both top and bottom surfaces creates multiple locking points that prevent rotational loosening under dynamic loads and thermal cycling. Engineered with case hardening to Rockwell C51, these washers maintain their structural integrity and locking capability even after repeated disassembly cycles. The 316 stainless steel material provides exceptional resistance to corrosion, making these wedge lock washers ideal for marine, chemical processing, and outdoor infrastructure applications where moisture and chemical exposure are concerns. The combination of inch and metric compatibility (1 1/2" and M39) ensures seamless integration into diverse equipment and machinery requiring reliable vibration-resistant fastening solutions.

Specification Summary & Compliance

This heavy-duty washer features precise dimensional specifications with 1.59" inner diameter, 2.3" outer diameter, and 0.260-0.280" thickness range. The wedge lock washer undergoes specialized case hardening treatment achieving Rockwell C51 hardness for optimal durability. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safe use across global industrial markets. The dual serration design provides superior locking performance for both inch (1 1/2") and metric (M39) fastener systems in high-vibration applications.