S-90940A105 2.2 mm ID x 5 mm OD DIN 125 Plastic Washers

Key Features & Benefits at a Glance

• Exceptional Temperature Resistance: Maintains structural integrity in extreme environments from -40°F to 220°F, ideal for applications with thermal cycling
• Superior Material Clarity & Chemical Resistance: Polycarbonate construction offers excellent visibility for inspection while resisting industrial chemicals and environmental degradation
• Precision Dimensional Control: DIN 125 compliant manufacturing ensures consistent 2.2mm ID and 5mm OD for reliable M2 screw compatibility and uniform load distribution
• Optimized Mechanical Performance: Rockwell R120 hardness provides ideal balance between surface protection and vibration resistance without damaging mating components
• Ultra-Thin Profile Advantage: 0.2-0.4mm thickness enables space-constrained assemblies while maintaining effective sealing and spacing functions
• Regulatory Compliance Assurance: Meets RoHS 3 and REACH standards for safe use in regulated industries including electronics and medical equipment
• Durability in Harsh Conditions: Polycarbonate material offers impact resistance and long-term performance stability in demanding industrial environments

Professional Applications & Engineering Value

These M2 metric flat washers engineered from polycarbonate plastic solve critical challenges in precision assembly applications. The clear transparency allows visual verification of proper installation and component alignment, while the DIN 125 compliance ensures dimensional accuracy for consistent performance in automated assembly processes. The material's inherent Rockwell R120 hardness provides optimal surface protection without galling or corrosion concerns common with metal alternatives. Particularly valuable in electronics enclosures, optical equipment, and medical devices, these washers deliver reliable insulation properties and chemical resistance where conductivity or contamination must be avoided. The extended temperature range from -40°F to 220°F makes them suitable for outdoor applications, automotive components, and thermal management systems where thermal expansion differentials must be accommodated.

Specification Summary & Compliance

Manufactured to DIN 125 standards with precise dimensional tolerances: 2.2mm inner diameter, 5mm outer diameter, and 0.2-0.4mm thickness range for M2 screw applications. The polycarbonate material delivers Rockwell R120 hardness characteristics with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence. Temperature performance certified from -40°F to 220°F for reliable operation across diverse industrial conditions.