S-5909K75 20.04 mm ID x 35 mm OD DIN 5405-3, ISO 303 Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Precise 20mm shaft compatibility ensures secure fit and eliminates play in mechanical assemblies
• DIN 5405-3 and ISO 303 certified construction guarantees consistent quality and international standard compliance
• Tight dimensional tolerances provide reliable performance in high-precision industrial applications
• RoHS 3 and REACH compliant steel material meets environmental regulations for global manufacturing
• 35mm outer diameter with controlled thickness offers optimal load distribution and surface protection
• Metric system compatibility simplifies integration with European and international equipment designs
• Durable steel construction ensures long-term reliability in demanding mechanical environments

Professional Applications & Engineering Value

This precision DIN 5405-3 metric steel washer addresses critical engineering challenges in industrial machinery and equipment assembly. The exact 20mm inner diameter provides perfect shaft compatibility, eliminating rotational slippage and maintaining concentric alignment in rotating assemblies. Manufactured to ISO 303 standards with controlled thickness and diameter tolerances, these industrial washers ensure consistent spacing and load distribution in automotive, manufacturing, and heavy equipment applications. The steel construction withstands vibration and mechanical stress while the standardized dimensions facilitate seamless integration into existing metric system designs, reducing assembly time and improving overall system reliability.

Specification Summary & Compliance

This metric steel washer features precise dimensional specifications: 20.04mm ID (0mm to +0.21mm tolerance), 35mm OD (-0.25mm to -0.04mm tolerance), and 1mm thickness (±0.05mm tolerance). The product conforms to DIN 5405-3 and ISO 303 mechanical standards, ensuring international compatibility and performance reliability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, making these washers suitable for regulated industries and global supply chains.