S-91235A120 0.389" ID x 0.93" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance ensures reliable fastening in high-stress industrial environments, preventing loosening over time
• Excellent corrosion resistance from 18-8 stainless steel construction maintains performance in humid or chemically aggressive settings
• Precision dimensional control with 0.389" ID and 0.93" OD guarantees consistent fit and function with 3/8" fasteners
• Enhanced durability with Rockwell C38 hardness provides long-term wear resistance and structural integrity
• Regulatory compliance with RoHS 3 and REACH standards ensures safe use across global industrial markets
• Optimized spring action delivers consistent tension and compensation for joint settlement in mechanical assemblies
• Versatile inch system compatibility facilitates easy integration with existing industrial equipment and standards

Professional Applications & Engineering Value

This 3/8" spring lock washer delivers critical engineering value in applications where vibration-induced loosening compromises safety and performance. Manufactured from 18-8 stainless steel, the washer provides exceptional corrosion resistance for harsh environments including marine, chemical processing, and outdoor equipment. The spring lock design creates constant tension that compensates for thermal expansion, material relaxation, and vibration in industrial machinery, automotive assemblies, and structural fastening systems. With precise 0.389" ID and 0.93" OD dimensions, this washer ensures perfect compatibility with standard 3/8" fasteners while the Rockwell C38 hardness maintains form under repeated loading cycles, making it ideal for maintenance-critical applications requiring long-term reliability.

Specification Summary & Compliance

This spring lock washer features precision inch system dimensions with 0.389" internal diameter, 0.93" outer diameter, and thickness range of 0.070-0.076" for consistent performance. Manufactured to industry standards for spring lock washers with Rockwell C38 hardness ensuring mechanical durability. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 06/14/2023, 235 SVHC), meeting the latest environmental and safety regulations for industrial components.