S-90132A556 0.875" ID x 2.25" OD Plastic Washers

Key Features & Benefits at a Glance

• Exceptional Durability with Rockwell R70 hardness for long-lasting performance in demanding applications
• Precise Fit with 0.875" ID specifically designed for 7/8" screw sizes to ensure secure fastening
• Optimal Load Distribution through 2.25" OD design that minimizes surface pressure and prevents material damage
• Reliable Thermal Performance withstanding temperatures up to 230°F for stable operation in heated environments
• Environmentally Compliant meeting both RoHS 3 and REACH standards for safe industrial usage
• Consistent Thickness between 0.120-0.130" for uniform compression and reliable sealing capabilities
• Hard Fiber Construction providing excellent electrical insulation and corrosion resistance properties

Professional Applications & Engineering Value

This hard fiber flat washer delivers exceptional engineering value in industrial settings where electrical insulation, thermal stability, and chemical resistance are critical. The gray hard fiber material provides superior dielectric properties while maintaining structural integrity under compression. Engineered for 7/8" screw applications, this washer effectively distributes load pressure across the 2.25" OD surface, preventing fastener loosening and protecting sensitive materials from damage. The Rockwell R70 hardness ensures consistent performance in high-vibration environments common in machinery, electrical enclosures, and automotive assemblies. With temperature resistance up to 230°F, this industrial washer maintains dimensional stability in heated applications while the precise 0.875" ID guarantees proper alignment and secure fastening in inch-system installations.

Specification Summary & Compliance

This hard fiber flat washer features precise dimensional specifications including 0.875" inner diameter, 2.25" outer diameter, and thickness ranging from 0.120" to 0.130" for consistent performance. Manufactured to inch system standards for 7/8" screw applications, the washer demonstrates Rockwell R70 hardness for optimal durability. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and meets REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory adherence for industrial use across global markets.