S-90474A177 0.656" ID x 1.75" OD ASME B18.21.1 ASME Washers

Key Features & Benefits at a Glance

• Lightweight corrosion resistance - Aluminum construction provides excellent durability without adding significant weight to assemblies
• Precise load distribution - 1.75" outer diameter ensures optimal surface contact to prevent surface damage and component embedding
• Perfect fit for 5/8" fasteners - 0.656" inner diameter offers precise compatibility with standard screw sizes
• Consistent performance thickness - 0.090-0.112" thickness range maintains reliable spacing and vibration resistance
• Industry-standard compliance - Manufactured to ASME B18.21.1 specifications for guaranteed dimensional accuracy and performance
• Environmentally responsible manufacturing - RoHS 3 and REACH compliance ensures safe use in regulated industries
• Versatile industrial application - Ideal for electrical, marine, and aerospace applications where weight reduction and corrosion resistance are critical

Professional Applications & Engineering Value

These aluminum flat washers deliver exceptional engineering value in applications where weight reduction and corrosion resistance are paramount. The ASME B18.21.1 certified design ensures precise dimensional tolerances that prevent loosening under vibration and thermal cycling. The aluminum material provides natural corrosion resistance without requiring additional coatings, making these flat washers ideal for electrical enclosures, marine hardware, and aerospace components where galvanic corrosion must be minimized. The inch system measurements guarantee compatibility with North American machinery and equipment, while the RoHS 3 and REACH compliance ensures these washers meet the strictest environmental regulations for industrial and export applications.

Specification Summary & Compliance

This 5/8" aluminum flat washer features precise inch system dimensions with 0.656" inner diameter, 1.75" outer diameter, and 0.090-0.112" thickness range. Manufactured in strict compliance with ASME B18.21.1 standards for dimensional accuracy and performance reliability. The product is certified RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant with current substance restrictions, ensuring environmental responsibility and regulatory acceptance for global industrial applications.