S-90449A120 5 mm ID x 10 mm OD DIN 7603 Hard Fiber Sealing Washers

Key Features & Benefits at a Glance

• Superior electrical insulation prevents current leakage and short circuits in electrical assemblies
• Excellent chemical resistance maintains integrity when exposed to oils, solvents, and industrial fluids
• Precise dimensional accuracy with 5mm ID, 10mm OD and 0.8mm thickness ensures perfect fit for M5 fasteners
• DIN 7603 compliance guarantees consistent quality and reliable performance in demanding applications
• Rockwell R50 hardness provides optimal durability while maintaining necessary compressibility
• Environmental compliance with RoHS 3 and REACH regulations ensures workplace safety and global acceptance
• Effective sealing properties create reliable barriers against moisture, dust, and contaminants

Professional Applications & Engineering Value

This M5 metric flat fiber washer delivers critical engineering solutions where both electrical insulation and chemical resistance are paramount. The fiber material construction effectively addresses common industrial challenges by preventing galvanic corrosion between dissimilar metals while providing reliable sealing in electrical enclosures, control panels, and automotive components. Its 0.8mm thickness and Rockwell R50 hardness balance compressibility with durability, ensuring consistent performance under vibration and thermal cycling. The washer's compliance with DIN 7603 standards makes it ideal for European machinery, electrical equipment, and precision instruments requiring certified components for safety-critical applications.

Specification Summary & Compliance

This flat fiber washer features precise metric dimensions (5mm ID × 10mm OD × 0.8mm thickness) specifically designed for M5 screw applications. Manufactured to DIN 7603 standards with Rockwell R50 hardness rating, it ensures dimensional accuracy and consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental safety requirements for industrial components.