S-90089A330 0.375" ID x 0.5" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional electrical insulation properties due to hard fiber construction, preventing short circuits in electrical assemblies.
• Superior resistance to compression and deformation under load, ensuring consistent sealing and spacing in demanding applications.
• Excellent performance in high-temperature environments, reliably operating up to 230°F without degradation.
• Precise dimensional fit with 0.375" ID and 0.5" OD, ensuring easy installation and secure placement on 3/8" screws.
• Guaranteed environmental and workplace safety through full compliance with RoHS 3 and REACH regulations.
• Minimal thickness variation (0.014"-0.016") for uniform pressure distribution and reduced risk of fastener loosening.
• Durable, non-conductive gray hard fiber material provides long-lasting service life in industrial and electrical settings.

Professional Applications & Engineering Value

This hard fiber flat washer is engineered to address critical challenges in electrical and industrial assemblies where insulation, thermal stability, and chemical resistance are paramount. Its hard fiber material offers excellent dielectric properties, making it ideal for preventing electrical current leakage in equipment, junction boxes, and control panels. The washer effectively seals and spaces components while withstanding temperatures up to 230°F, common in motors, transformers, and automotive under-hood applications. The precise 0.375" ID and 0.5" OD ensure a perfect fit for 3/8" screws, reducing installation time and preventing misalignment. By combining RoHS and REACH compliance with robust performance, this washer minimizes downtime and enhances the safety and longevity of your machinery and electrical systems.

Specification Summary & Compliance

This washer conforms to standard inch system dimensional tolerances, with an inner diameter of 0.375", outer diameter of 0.5", and a thickness range of 0.014" to 0.016", designed specifically for 3/8" screw size. It is manufactured from hard fiber in a consistent gray color and is rated for a maximum temperature of 230°F. 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 electrical applications.