S-90476A118 0.625" ID x 1.469" OD ASME B18.21.1 USS Washers

Key Features & Benefits at a Glance

• Exceptional strength and durability with Grade 9 classification and Rockwell C43 hardness, ensuring reliable performance under heavy loads
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding industrial environments
• Precise dimensional compatibility with 9/16" screws through 0.625" ID and 1.469" OD, ensuring perfect fit and optimal load distribution
• Heavy-duty construction with thickness ranging from 0.086" to 0.132", designed to withstand extreme pressure and vibration
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing consistent quality and interchangeability
• Environmental responsibility through RoHS 3 and REACH compliance, meeting strict regulatory requirements for industrial applications
• Versatile USS flat washer design suitable for various industrial fastening systems requiring reliable load-bearing surfaces

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these Grade 9 USS flat washers provide critical solutions for heavy machinery, structural steel connections, and high-vibration environments. The zinc yellow-chromate plated steel construction addresses common corrosion challenges in outdoor or harsh chemical exposures, while the Rockwell C43 hardness ensures maintained clamping force under extreme pressure. These 9/16" washers with precise 0.625" ID and 1.469" OD dimensions prevent bolt head embedment and distribute loads effectively across joined surfaces. The ASME B18.21.1 compliance guarantees dimensional consistency and performance reliability, making them ideal for construction equipment, industrial machinery, and structural applications where fastener integrity is paramount.

Specification Summary & Compliance

This USS flat washer features precise dimensional specifications including 0.625" ID, 1.469" OD, and thickness ranging from 0.086" to 0.132". Manufactured to ASME B18.21.1 standards with Grade 9 strength classification and Rockwell C43 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining superior mechanical properties and corrosion resistance.