S-90394A113 5.3 mm ID x 11 mm OD DIN 137B Wave Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration damping from the wave spring design, maintaining consistent tension and preventing fastener loosening in dynamic applications
• Excellent corrosion resistance due to bronze construction, ideal for harsh industrial environments and extending component lifespan
• Precise DIN 137B compliance ensures reliable dimensional accuracy and interchangeability in metric assembly systems
• Effective spring force from the 0.5mm thickness and wave height, providing necessary axial load for M5 screw applications
• Environmental regulation compliance with RoHS 3 and REACH standards, meeting global safety and sustainability requirements
• Compact 11mm OD design allows for easy installation in confined spaces while maintaining full functional performance
• Durable material properties of bronze offer good conductivity and non-sparking characteristics for specialized industrial uses

Professional Applications & Engineering Value

This M5 bronze wave washer engineered to DIN 137B standards addresses critical vibration-induced failure points in mechanical assemblies. The wave form structure creates consistent spring pressure that compensates for thermal expansion, material wear, and vibration stresses in industrial equipment, automotive systems, and electrical enclosures. Bronze material provides natural lubrication properties and corrosion resistance, reducing galling and seizing while maintaining performance in temperature-variable environments. The precise 5.3mm ID ensures secure fitment on M5 fasteners, preventing rotational movement while the 11mm OD distributes load effectively across mating surfaces. This combination of vibration resistance and material durability makes it particularly valuable for applications requiring repeated disassembly and reassembly cycles.

Specification Summary & Compliance

This metric wave washer features precise dimensions of 5.3mm inner diameter, 11mm outer diameter, and 0.5mm thickness with 2.2mm overall wave height, manufactured to DIN 137B specifications for dimensional accuracy and performance consistency. The product maintains full compliance with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety, verified against 235 SVHCs as of June 2023. Designed specifically for M5 screw applications, this bronze wave washer meets international standards for industrial hardware components requiring reliable spring action and vibration damping characteristics.