S-90391A128 80 mm ID x 112 mm OD DIN 5406 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through conical spring design that maintains constant tension under dynamic loads
• Enhanced locking security with external teeth that bite into mating surfaces, preventing loosening
• Optimized bearing surface contact with chamfered design for smooth installation and reduced stress concentration
• Precision dimensional accuracy with 80mm ID and 112mm OD ensuring perfect fit for M80 screw applications
• Robust steel construction providing excellent durability and load distribution in demanding industrial environments
• Full regulatory compliance meeting both RoHS 3 and REACH standards for safe, environmentally responsible usage
• Standardized performance manufactured to DIN 5406 and DIN 981 specifications for consistent quality and reliability

Professional Applications & Engineering Value

This M80 spring lock washer delivers exceptional engineering value in heavy-duty applications where vibration-induced loosening poses significant operational risks. The external tooth configuration combined with the conical spring shape creates a dual-action locking mechanism that maintains joint integrity under extreme conditions. The chamfered bearing nut face facilitates easier installation while minimizing surface damage to connected components. Manufactured from high-quality steel material and compliant with DIN 5406 standards, this metric washer provides reliable performance in construction machinery, industrial equipment, and transportation systems where vibration resistance and long-term fastener security are critical to operational safety and maintenance efficiency.

Specification Summary & Compliance

This spring lock washer features precise metric dimensions with 80mm inner diameter, 112mm outer diameter, and 1.750mm thickness, engineered to exacting DIN 5406 specifications. The external tooth design and conical shape provide optimal locking performance for M80 screw applications with chamfered bearing nut interfaces meeting DIN 981 standards. The washer demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety while maintaining the dimensional accuracy and mechanical properties required for industrial fastener applications.