S-90132A554 0.625" ID x 2.25" OD Plastic Washers

Key Features & Benefits at a Glance

• Superior electrical insulation prevents current leakage and short circuits in electrical assemblies
• Excellent chemical and corrosion resistance ensures long-term reliability in harsh industrial environments
• High-temperature tolerance up to 230°F maintains structural integrity in heated applications
• Rockwell R70 hardness rating provides exceptional durability and resistance to deformation under load
• Precision 0.625" ID and 2.25" OD dimensions guarantee perfect fit for 5/8" screw applications
• Full RoHS 3 and REACH compliance meets strict international environmental and safety standards
• Consistent 0.120-0.130" thickness ensures reliable performance and uniform pressure distribution

Professional Applications & Engineering Value

This hard fiber flat washer delivers critical engineering solutions where metal washers would fail. The gray hard fiber material provides essential electrical insulation properties while offering superior resistance to chemicals, oils, and moisture that cause corrosion in industrial settings. With its Rockwell R70 hardness and precise dimensional stability, this washer maintains compression integrity in high-vibration applications common in machinery, electrical enclosures, and automotive assemblies. The 230°F temperature resistance makes it ideal for applications near motors, transformers, and heated equipment where thermal stability is paramount. Engineered for 5/8" screw applications, this component prevents galvanic corrosion between dissimilar metals while ensuring reliable, long-lasting performance in demanding industrial environments.

Specification Summary & Compliance

This inch-system flat washer features precise dimensional specifications with 0.625" inner diameter, 2.25" outer diameter, and consistent thickness ranging from 0.120" to 0.130". Manufactured to exacting standards for reliable performance with 5/8" fasteners, the washer demonstrates Rockwell R70 hardness for optimal durability. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.