S-90770A035 0.68" ID x 1.5" OD General Purpose Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance for extended service life in harsh chemical and acidic environments
• Excellent chemical compatibility with sulfuric acid and other aggressive media, reducing replacement frequency
• Precise dimensional fit with 0.68" ID and 1.5" OD ensuring proper load distribution for 5/8" fasteners
• Consistent thickness control (0.070-0.076") for uniform clamping force and joint integrity
• Alloy 20 material composition providing outstanding performance where standard stainless steels fail
• Heavy-duty construction capable of withstanding demanding industrial applications and high-stress conditions
• Inch system compatibility for seamless integration with existing North American equipment and standards

Professional Applications & Engineering Value

Engineered specifically for demanding industrial environments, these Alloy 20 stainless steel flat washers deliver exceptional performance where corrosion resistance is critical. The Alloy 20 material grade offers superior protection against sulfuric acid, phosphoric acid, and other aggressive chemicals that rapidly degrade standard stainless steels. This makes them ideal for chemical processing equipment, petrochemical facilities, and food processing machinery where exposure to corrosive media is constant. The precise flat washer design with controlled thickness ensures even load distribution across the bearing surface, preventing fastener loosening and maintaining joint integrity under vibration and thermal cycling. The 5/8" screw size compatibility and inch system measurements provide straightforward implementation in North American industrial applications requiring reliable corrosion protection.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.68" inner diameter, 1.5" outer diameter, and thickness range of 0.070-0.076" designed for 5/8" screw size applications. Manufactured from Alloy 20 stainless steel using inch system measurements, these washers comply with standard industrial dimensional requirements. While hardness is not rated, the material composition provides excellent mechanical properties for industrial fastening applications. The product meets industry standards for corrosion-resistant components used in chemical processing and harsh environment applications.