S-93493A318 1.7 mm ID x 4 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Superior thermal resistance up to 280°F, ensuring reliable performance in high-temperature environments without degradation
• Excellent electrical insulation properties from fiberglass material, preventing short circuits and enhancing safety in electronic assemblies
• High hardness rating of Rockwell M115 provides exceptional durability and resistance to wear in demanding applications
• Precise dimensional accuracy with 1.7mm ID and 4mm OD, ensuring perfect fit for M1.6 metric screws and reducing assembly errors
• Chemical and corrosion resistance due to fiberglass composition, extending service life in harsh industrial conditions
• Light green color coding allows for easy identification and organization during installation and maintenance
• Full compliance with RoHS 3 and REACH regulations, guaranteeing environmental safety and meeting international standards for restricted substances

Professional Applications & Engineering Value

This M1.6 metric flat washer is engineered from premium fiberglass material to address critical challenges in precision industries. Its inherent electrical insulation and high-temperature resistance up to 280°F make it ideal for applications in electronics, automotive, and aerospace sectors, where thermal management and electrical safety are paramount. The light green finish aids in quick part identification, streamlining assembly processes. By offering reliable chemical resistance and maintaining dimensional stability under stress, it reduces failure risks in metric screw fastening systems, ensuring long-term performance in environments exposed to heat, moisture, or corrosive agents.

Specification Summary & Compliance

This washer features precise dimensions: 1.7mm inner diameter, 4mm outer diameter, and 0.3-0.5mm thickness, designed for M1.6 screw size in metric systems. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The Rockwell M115 hardness confirms consistent manufacturing quality, suitable for applications requiring reliable flat washer performance in high-temperature and insulated settings.