S-90474A172 0.203" ID x 0.562" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from high-quality aluminum construction, ideal for harsh industrial environments
• Precise dimensional fit with 0.203" ID and 0.562" OD ensuring perfect alignment with No. 10 screws
• Consistent load distribution with controlled 0.036-0.045" thickness for enhanced joint integrity
• Guaranteed quality standards through full compliance with ASME B18.21.1 manufacturing specifications
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global supply chain compatibility
• Lightweight durability providing reliable performance without adding significant weight to assemblies
• Versatile industrial application suitable for various mechanical and electrical equipment requiring precision flat washers

Professional Applications & Engineering Value

This aluminum flat washer delivers exceptional engineering value through its corrosion-resistant properties and precise dimensional control. The aluminum material provides natural oxidation resistance, making it ideal for applications where moisture or chemical exposure could compromise fastener integrity. With specific dimensions of 0.203" inner diameter and 0.562" outer diameter, this flat washer ensures optimal surface contact and pressure distribution when used with No. 10 screw applications. The controlled thickness range of 0.036-0.045" maintains consistent spacing and prevents over-compression in assemblies. These industrial washers are particularly valuable in electrical enclosures, light machinery, and aerospace components where weight reduction and reliable performance are critical engineering considerations.

Specification Summary & Compliance

This precision aluminum flat washer features dimensional specifications of 0.203" ID, 0.562" OD, and thickness range of 0.036-0.045" specifically engineered for No. 10 screw size applications. Manufactured in compliance with ASME B18.21.1 standards for flat washers, ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance with the latest substance restrictions as of June 14, 2023, covering 235 SVHCs. These inch system washers provide reliable mechanical performance while maintaining environmental regulatory requirements for global industrial applications.