S-90391A136 115 mm ID x 159 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
• Precision compatibility with M115 screws and DIN 981 chamfered bearing nuts for seamless integration
• Durable steel construction ensures long-term reliability in demanding industrial environments
• Optimized dimensional accuracy with 115mm ID and 159mm OD meeting DIN 5406 specifications
• Environmental compliance assurance with RoHS 3 and REACH certification for global supply chain compatibility
• Effective load distribution through 2.0mm thickness and 7mm overall height design

Professional Applications & Engineering Value

This M115 spring lock washer engineered to DIN 5406 standards addresses critical vibration-induced loosening challenges in heavy machinery, automotive assemblies, and industrial equipment. The conical spring shape combined with external teeth creates a dual-action locking mechanism that maintains clamp force under extreme conditions. The steel construction provides consistent performance across temperature variations while the metric dimensions ensure perfect compatibility with European-manufactured components. Particularly valuable in applications requiring DIN 981 bearing nut compatibility, this washer prevents catastrophic failures in rotating equipment, conveyor systems, and precision mechanical assemblies where vibration resistance is paramount to operational safety and equipment longevity.

Specification Summary & Compliance

Manufactured to DIN 5406 specifications with precise metric dimensions: 115mm inner diameter, 159mm outer diameter, 2.0mm thickness, and 7mm overall height. Features external tooth configuration and conical spring lock washer shape designed for compatibility with M115 screw sizes and DIN 981 chamfered bearing nuts. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets. The steel material provides consistent mechanical properties without hardness rating requirements as specified by the standard.