S-90407A123 28 mm ID x 50 mm OD DIN 462 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
• Precise stepped bearing nut compatibility with DIN 1804 standards for secure, flush mounting in industrial assemblies
• Optimized metric dimensions (28mm ID/50mm OD) ensuring perfect fit with M28 fasteners and consistent performance
• Durable steel construction providing reliable spring action and long-term corrosion resistance in harsh environments
• Industry-standard compliance with DIN 462 specifications guaranteeing interchangeability and quality assurance
• Environmental regulation adherence with RoHS 3 and REACH compliance for global supply chain integration
• Space-efficient profile (1mm thickness, 5mm height) enabling use in compact assemblies without compromising locking performance

Professional Applications & Engineering Value

This M28 spring lock washer delivers critical anti-loosening protection in high-vibration environments where fastener security is paramount. The conical steel construction creates continuous spring pressure that compensates for thermal expansion, material relaxation, and dynamic stresses in machinery, automotive, and structural applications. Engineered with a stepped bearing nut face style compatible with DIN 1804, it prevents rotation and distributes load evenly across mating surfaces. The metric dimensions and DIN 462 compliance ensure seamless integration with European equipment specifications, while the 1mm thickness maintains low-profile installation in space-constrained assemblies. This washer solves common industrial challenges of fastener loosening, reducing maintenance frequency and preventing equipment downtime.

Specification Summary & Compliance

Manufactured to DIN 462 standards with precise metric dimensions: 28mm inner diameter, 50mm outer diameter, and 1mm thickness. Features conical spring lock washer shape with stepped bearing nut face style per DIN 1804 compatibility. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in industrial applications worldwide. Designed specifically for M28 screw sizes with consistent dimensional accuracy for reliable performance in mechanical fastening systems.