S-90474A176 0.531" ID x 1" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Lightweight aluminum construction reduces overall assembly weight while maintaining structural integrity
• Corrosion-resistant properties ensure long-lasting performance in various industrial environments
• Precision dimensional control with 0.531" ID and 1" OD provides reliable fit for 1/2" screw applications
• ASME B18.21.1 compliance guarantees consistent quality and interchangeability in mechanical assemblies
• RoHS 3 and REACH compliance ensures environmental responsibility and workplace safety
• Optimized thickness range (0.056-0.071") offers proper load distribution without adding unnecessary bulk
• Inch system compatibility simplifies integration with existing North American equipment and standards

Professional Applications & Engineering Value

This aluminum flat washer delivers exceptional engineering value across multiple industrial sectors. The corrosion-resistant aluminum material prevents galvanic corrosion and maintains performance in harsh environments, making it ideal for outdoor equipment, marine applications, and chemical processing facilities. With precise 0.531" inner diameter and 1" outer diameter dimensions, this washer provides optimal load distribution for 1/2" screw applications, preventing surface damage and maintaining joint integrity. The ASME B18.21.1 compliance ensures dimensional consistency across production batches, reducing assembly time and eliminating compatibility issues in mechanical fastening systems. Its lightweight nature makes it particularly valuable in aerospace, automotive, and transportation industries where weight reduction is critical without compromising on fastener reliability.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.531" inner diameter, 1" outer diameter, and thickness ranging from 0.056" to 0.071" for optimal performance with 1/2" screws. Manufactured in compliance with ASME B18.21.1 standards for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) compliance for chemical safety, ensuring environmental responsibility and workplace safety standards are maintained.