S-98688A152 5.3 mm ID x 9 mm OD DIN 433 General Purpose Washers

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc plating for extended service life in demanding environments
• Reliable load distribution due to precise 9mm OD and 5.3mm ID, preventing surface damage to assemblies
• Consistent performance ensured by Rockwell C38 hardness, maintaining shape under pressure
• Guaranteed dimensional accuracy through strict DIN 433 standard compliance
• Broad industrial compatibility with M5 screw sizes for versatile fastening solutions
• Safe for regulated industries with full RoHS 3 and REACH compliance
• Optimized thickness tolerance (0.9-1.1mm) for reliable seating and vibration resistance

Professional Applications & Engineering Value

This M5 zinc plated steel flat washer is engineered to address common industrial challenges like corrosion, joint loosening, and material fatigue. The zinc plating provides a protective barrier against moisture and chemicals, significantly extending component life in outdoor or harsh manufacturing settings. Its compliance with DIN 433 ensures precise dimensions and consistent quality, critical for automated assembly lines and high-volume production. The Rockwell C38 hardness offers excellent resistance to deformation, making it ideal for applications in machinery, automotive subsystems, and electrical enclosures where reliable load distribution and vibration dampening are essential. By maintaining clamp load and protecting surfaces, this metric flat washer reduces maintenance frequency and enhances overall assembly integrity.

Specification Summary & Compliance

This washer meets DIN 433 specifications for dimensional accuracy, with an inner diameter of 5.3mm, outer diameter of 9mm, and thickness between 0.9-1.1mm. It is manufactured from zinc plated steel and hardened to Rockwell C38 for mechanical reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and safe for industrial use across various sectors.