S-91235A105 0.169" ID x 0.403" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance ensures fasteners remain securely locked under dynamic loads and mechanical stress
• Exceptional corrosion resistance from 17-7 PH Stainless Steel construction for longevity in harsh environments
• High hardness (Rockwell C38) provides excellent wear resistance and maintains spring tension over repeated cycles
• Precision dimensional control with 0.169" ID and 0.403" OD ensures perfect fit for No. 8 screw applications
• Optimized spring height design (0.05" overall) delivers consistent clamping force and reliable locking action
• Full regulatory compliance with RoHS 3 and REACH standards for global industrial use without restriction
• Inch system compatibility enables seamless integration with existing North American equipment and specifications

Professional Applications & Engineering Value

This spring lock washer addresses critical vibration-induced loosening challenges in demanding industrial environments. Manufactured from 17-7 PH Stainless Steel, it maintains its spring properties and corrosion resistance even when exposed to chemicals, moisture, and temperature variations. The precise 0.169" ID and controlled thickness ensure optimal compression and consistent spring force for No. 8 screw fastening systems. Engineering teams specify this washer for machinery, automotive assemblies, and electrical enclosures where vibration resistance is paramount. The combination of material strength and dimensional accuracy prevents joint failure, reduces maintenance frequency, and extends equipment service life in critical applications.

Specification Summary & Compliance

This spring lock washer features precise inch-system dimensions: 0.169" internal diameter, 0.403" outer diameter, and thickness ranging 0.029-0.033" with 0.05" overall height. Manufactured to exacting standards for No. 8 screw size applications, it delivers consistent performance with Rockwell C38 hardness ensuring durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.