S-5909K291 4.02 mm ID x 14 mm OD DIN 5405-3, ISO 303 Washers for Needle-Roller Thrust Bearings

Key Features & Benefits at a Glance

• Precise shaft compatibility with 4.02mm inner diameter and controlled tolerances ensures secure fit and prevents component misalignment
• Enhanced load distribution through 14mm outer diameter design reduces surface pressure and extends equipment service life
• Consistent performance maintained by 1mm thickness with minimal variation (±0.05mm) for uniform clamping force
• Guaranteed interchangeability through compliance with DIN 5405-3 and ISO 303 international standards
• Corrosion-resistant steel construction provides reliable performance in demanding industrial environments
• Environmental compliance assurance with RoHS 3 and REACH adherence for global supply chain integration
• Optimized for 4mm shaft applications delivering reliable spacing and protection in precision assemblies

Professional Applications & Engineering Value

This metric steel washer addresses critical engineering challenges in precision shaft assemblies where dimensional stability and consistent performance are paramount. Manufactured to DIN 5405-3 and ISO 303 standards, the washer's precisely controlled inner diameter of 4.02mm with tight tolerance ensures perfect compatibility with 4mm shafts, eliminating play and preventing axial movement that could compromise mechanical integrity. The 14mm outer diameter provides optimal surface coverage, distributing loads evenly to prevent brinelling and surface damage to mating components. In industrial applications ranging from precision machinery to automotive assemblies, this steel washer serves as a reliable interface component that maintains structural integrity under dynamic loads and vibration, while its standardized dimensions guarantee seamless replacement and maintenance operations.

Specification Summary & Compliance

This precision washer features dimensional specifications with ID: 4.02mm (0mm to +0.12mm tolerance), OD: 14mm (-0.14mm to -0.02mm tolerance), and Thickness: 1mm (±0.05mm tolerance), engineered for 4mm shaft diameter applications. The product strictly conforms to DIN 5405-3 and ISO 303 standards, ensuring international compatibility and manufacturing consistency. Environmental compliance is verified through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, meeting the latest regulatory requirements for industrial components in global markets.