S-91812A669 0.79" ID x 1.54" OD Extreme-Vibration-Resistant Wedge Lock Washers
Extreme-Vibration-Resistant Wedge Lock Washers
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through wedge lock design that prevents loosening under extreme dynamic loads
- Enhanced corrosion protection with 316 stainless steel construction for harsh industrial environments
- Maximum locking performance with dual-sided serrations that bite into both mating surfaces
- Exceptional durability from case hardening to Rockwell C51 hardness for long service life
- Reliable compliance with RoHS 3 and REACH environmental standards for global applications
- Precise dimensional fit with 0.79" ID specifically engineered for 3/4" screw applications
- Optimized load distribution through 1.54" OD design that minimizes surface damage
Professional Applications & Engineering Value
This 316 stainless steel wedge lock washer delivers critical vibration resistance in demanding industrial applications where fastener security is paramount. The top and bottom serrations create a mechanical locking action that prevents rotation and loosening, even under severe vibration conditions common in heavy machinery, transportation equipment, and structural assemblies. The case hardened surface treatment to Rockwell C51 ensures the serrations maintain their biting capability through repeated loading cycles, while the corrosion-resistant 316 stainless steel material provides reliable performance in chemical processing, marine, and outdoor environments. This combination of locking capability and environmental resistance makes it an essential component for engineers specifying critical connections that must maintain integrity over extended service periods.
Specification Summary & Compliance
This wedge lock washer features precise inch system dimensions including 0.79" inner diameter for 3/4" screw applications, 1.54" outer diameter, and 0.120-0.140" thickness range. The washer undergoes case hardening treatment to achieve Rockwell C51 hardness for optimal wear resistance. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring suitability for regulated industrial applications worldwide.
