S-90391A125 65 mm ID x 92 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 in high-vibration environments
• Precise DIN 5406 compatibility ensures perfect fit with M65 screws and chamfered bearing nuts meeting DIN 981 standards
• Optimal load distribution with 65mm ID and 92mm OD dimensions that protect bearing surfaces from damage
• Reliable performance in demanding applications thanks to robust steel construction and 4.5mm overall height for consistent spring action
• Environmental compliance assurance with RoHS 3 and REACH compliance for use in regulated industries
• Easy installation and removal with 8mm tab width and 2.5mm tab depth for convenient handling during assembly

Professional Applications & Engineering Value

This M65 metric spring lock washer delivers critical engineering value in heavy-duty applications where vibration-induced loosening compromises safety and performance. The conical spring lock washer design creates continuous spring tension that compensates for settlement and wear, while the external tooth configuration provides positive locking action by embedding into both the bearing nut and mounting surface. Manufactured from high-quality steel with precise 1.5mm thickness, this washer is engineered specifically for bearing nut applications with chamfered face style, ensuring proper seating and load distribution. The combination of spring action and mechanical locking makes this DIN 5406 compliant washer ideal for industrial machinery, automotive assemblies, and construction equipment where reliable fastening under dynamic conditions is essential.

Specification Summary & Compliance

This precision spring lock washer features exact dimensional specifications including 65mm internal diameter, 92mm outer diameter, and 1.5mm thickness with 4.5mm overall height. Manufactured to DIN 5406 standards for dimensional accuracy and performance, it is specifically designed for use with M65 metric screws and bearing nuts with chamfered face style per DIN 981. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and suitability for use across various industrial sectors with strict regulatory requirements.