S-95647A169 2.7 mm ID x 5 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional chemical resistance from Delrin® Acetal Plastic construction, ideal for harsh industrial environments
• Superior dimensional stability maintains precise fit and prevents loosening under vibration or thermal changes
• High mechanical strength with Rockwell M90 hardness for reliable load distribution and fastener protection
• Lightweight non-conductive properties prevent galvanic corrosion and electrical interference in sensitive assemblies
• Broad temperature tolerance up to 180°F (82°C) for stable performance across various operating conditions
• Precision metric sizing (2.7mm ID x 5mm OD) ensures perfect compatibility with M2.5 fasteners
• Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance

Professional Applications & Engineering Value

This M2.5 metric flat washer delivers critical engineering advantages through its Delrin® Acetal Plastic composition, specifically designed to address common industrial challenges. The material's inherent low moisture absorption and excellent creep resistance prevent dimensional changes that compromise fastener integrity in precision assemblies. For electronic enclosures and medical devices, the white plastic washer provides reliable electrical insulation while resisting chemicals, oils, and solvents that degrade metal components. The 0.4-0.6 mm thickness offers optimal spacing without adding significant weight, making it ideal for aerospace components and automotive subsystems where both precision and corrosion resistance are paramount. These flat washers maintain consistent performance across temperature fluctuations, ensuring long-term reliability in demanding applications.

Specification Summary & Compliance

Manufactured to precise metric system dimensions (2.7mm ID × 5mm OD × 0.4-0.6mm thickness) for M2.5 screw compatibility. The Delrin® Acetal Plastic construction meets industry standards for dimensional stability and mechanical properties, with Rockwell M90 hardness ensuring consistent performance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental responsibility and global market suitability for industrial and electronic applications.