S-90474A154 0.656" ID x 2.25" OD ASME Washers

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with galvanized steel construction for long-lasting performance in harsh industrial environments
• Superior load distribution with 2.25" outer diameter providing maximum surface coverage and preventing surface damage
• Precise fit for 5/8" fasteners with 0.656" inner diameter ensuring secure installation and optimal alignment
• Enhanced durability with Rockwell B80 hardness rating maintaining structural integrity under heavy loads
• Consistent thickness tolerance (0.136-0.192") for reliable performance and uniform pressure distribution
• Compliance with environmental regulations including RoHS 3 and REACH for safe usage across global markets
• Heavy-duty construction designed to withstand extreme mechanical stress in demanding applications

Professional Applications & Engineering Value

This galvanized steel flat washer delivers critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The zinc coating provides superior protection against rust and environmental degradation, making it ideal for outdoor equipment, construction machinery, and marine applications. With its heavy-duty design and precise inch system measurements, this washer effectively distributes clamping force across a wider surface area, preventing bolt loosening and material deformation under vibration and dynamic loads. The combination of Rockwell B80 hardness and controlled thickness variation ensures consistent performance in assembly lines and maintenance operations, reducing equipment downtime and replacement frequency. Engineered for 5/8" screw sizes, it serves as an essential component in structural steel connections, industrial machinery, and automotive assemblies where reliability cannot be compromised.

Specification Summary & Compliance

This flat washer features precise dimensional specifications including 0.656" inner diameter, 2.25" outer diameter, and thickness range of 0.136-0.192" designed for 5/8" screw applications. Manufactured from galvanized steel with Rockwell B80 hardness rating, the product maintains consistent quality and performance standards. The washer is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) requirements (updated 06/14/2023, 235 SVHC), ensuring environmental safety and regulatory adherence for international industrial applications.