S-90940A111 3.2 mm ID x 9 mm OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional clarity enables easy visual inspection and monitoring of underlying components without disassembly.
• High-temperature resistance up to 212°F ensures reliable performance in thermally demanding environments.
• Superior Rockwell R118 hardness provides excellent dimensional stability and resistance to deformation under load.
• Precision M3 screw compatibility with a 3.2mm ID ensures a secure, snug fit for consistent fastening.
• Durable polycarbonate construction offers high impact resistance and long-term reliability in industrial settings.
• Comprehensive compliance with RoHS 3 and REACH regulations guarantees safety and environmental responsibility.
• Versatile 0.5-1.1mm thickness range allows for optimal load distribution and spacing adjustments.

Professional Applications & Engineering Value

This M3 clear polycarbonate flat washer is engineered to solve critical challenges in precision assembly and maintenance. Its transparent design is invaluable in applications requiring continuous visual access, such as optical devices, fluidic systems, or electronic enclosures, where monitoring without disruption is essential. The polycarbonate material delivers a unique combination of high impact strength and thermal stability, preventing brittleness and maintaining seal integrity in environments with fluctuating temperatures. This makes it an ideal choice for industrial applications in electronics, automotive, and medical equipment, where non-conductive, corrosion-resistant plastic washers are mandated. The precise metric dimensions (3.2mm ID, 9mm OD) ensure perfect alignment with M3 fasteners, reducing the risk of loosening and enhancing the overall durability of the assembly.

Specification Summary & Compliance

This flat washer conforms to standard metric system dimensions with an Inner Diameter of 3.2mm, Outer Diameter of 9mm, and a Thickness range of 0.5-1.1mm, designed specifically for M3 screw size. It is manufactured from Polycarbonate Plastic with a material hardness of Rockwell R118. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various industrial and consumer applications.