S-90391A113 15 mm ID x 28 mm OD DIN 5406 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through external tooth design that bites into mating surfaces to prevent loosening under dynamic loads
• Precise dimensional compatibility with M15 screws and DIN 981 chamfered bearing nuts for seamless integration into existing assemblies
• Durable steel construction provides reliable spring tension and maintains locking performance through repeated compression cycles
• Conical spring shape creates constant tension that compensates for thermal expansion and material relaxation
• Chamfered bearing nut face ensures smooth installation and proper seating without damaging mating surfaces
• Full regulatory compliance with RoHS 3 and REACH standards for use in environmentally sensitive applications
• Metric precision manufacturing to DIN 5406 specifications guarantees consistent quality and interchangeability

Professional Applications & Engineering Value

This M15 spring lock washer delivers critical vibration resistance in demanding mechanical systems where dynamic loads and thermal cycling threaten fastener integrity. The external tooth design provides immediate bite action that prevents rotational loosening, while the conical spring shape maintains constant preload to compensate for joint relaxation. Manufactured from high-quality steel and compliant with DIN 5406 standards, this washer offers reliable performance in automotive assemblies, industrial machinery, and precision equipment. The chamfered bearing nut face ensures damage-free installation and optimal load distribution, making it ideal for applications requiring repeated maintenance cycles. With RoHS 3 and REACH compliance, this component meets the strictest environmental regulations for industrial and consumer products.

Specification Summary & Compliance

This metric spring lock washer features precise dimensions (15mm ID, 28mm OD, 2.5mm overall height) manufactured to DIN 5406 specifications for dimensional accuracy and performance reliability. The external tooth configuration and conical shape provide optimal locking action compatible with M15 screw sizes and DIN 981 chamfered bearing nuts. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial applications without hazardous substance restrictions.