S-90394A111 3.2 mm ID x 8 mm OD DIN 137B Wave Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration damping through the wave spring design, maintaining consistent pressure and preventing fastener loosening in dynamic applications
• Excellent corrosion resistance from bronze construction, ensuring long-term reliability in harsh industrial environments
• Precision metric sizing with 3.2mm ID and 8mm OD for perfect compatibility with M3 screws and standard metric assemblies
• Optimized load distribution with 0.5mm thickness and 1.6mm overall height, providing reliable spring action while minimizing space requirements
• Guaranteed dimensional accuracy through compliance with DIN 137B standards, ensuring consistent performance across production batches
• Environmental compliance assurance with RoHS 3 and REACH certification, meeting global regulatory requirements for industrial components
• Durable bronze material offering excellent wear resistance and maintaining spring properties through repeated compression cycles

Professional Applications & Engineering Value

These M3 metric bronze wave washers deliver critical engineering solutions where vibration management and corrosion resistance are paramount. The bronze construction provides natural lubricity and exceptional resistance to atmospheric corrosion, making these DIN 137B compliant washers ideal for electrical components, marine equipment, and automotive assemblies exposed to moisture and chemical agents. The unique wave washer design creates consistent spring pressure that compensates for thermal expansion and mechanical settlement, preventing joint failure in M3 screw applications. This combination of material properties and precision engineering addresses common industrial challenges including fastener loosening, galvanic corrosion, and space-constrained assembly requirements, delivering reliable performance in demanding metric applications across multiple sectors.

Specification Summary & Compliance

This bronze wave washer features precise dimensional specifications including 3.2mm inner diameter, 8mm outer diameter, 0.5mm thickness, and 1.6mm overall height, engineered specifically for M3 screw size applications. Manufactured in strict compliance with DIN 137B standards for dimensional accuracy and performance consistency. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial use across global markets.