S-90449A110 5 mm ID x 8 mm OD DIN 7603 Hard Fiber Sealing Washers

Key Features & Benefits at a Glance

• Superior electrical insulation with fiber material to prevent current leakage and short circuits in sensitive applications
• Excellent sealing properties to protect against dust, moisture, and light corrosion in industrial environments
• Precise dimensional accuracy with 5mm ID, 8mm OD, and 0.8mm thickness ensuring perfect fit for M5 screws
• Consistent performance with Rockwell R50 hardness providing reliable compression resistance and durability
• Industry-standard compliance meeting DIN 7603 specifications for guaranteed interchangeability and quality
• Environmental safety assurance through RoHS 3 and REACH compliance for sustainable manufacturing practices
• Vibration dampening capability from fiber composition to reduce noise and prevent fastener loosening

Professional Applications & Engineering Value

These M5 metric flat fiber washers deliver critical engineering solutions where electrical insulation and mechanical protection are paramount. The fiber material composition provides excellent dielectric properties, making them ideal for electrical enclosures, control panels, and electronic assemblies where preventing electrical conductivity between metal components is essential. In industrial settings, they serve as effective sealing washers that resist compression set while maintaining their form under sustained pressure. The Rockwell R50 hardness ensures consistent performance without cracking or deforming during installation, while the precise 5x8x0.8mm dimensions guarantee proper seating on M5 fasteners. These washers effectively address common challenges in electrical insulation, vibration management, and corrosion prevention across automotive, machinery, and electrical industries.

Specification Summary & Compliance

This flat fiber washer features precise metric dimensions with 5mm internal diameter, 8mm outer diameter, and 0.8mm thickness specifically designed for M5 screw applications. Manufactured to DIN 7603 standards ensuring dimensional accuracy and performance reliability. The washer demonstrates Rockwell R50 hardness for consistent mechanical properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and restricted substance adherence for global industrial applications.