S-90231A130 1.375" ID x 2.5" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass material, ideal for humid or chemically aggressive environments
• Precise dimensional fit with 1.375" ID specifically designed for 1 1/4" screw sizes, ensuring secure fastening
• Excellent load distribution with 2.5" OD, protecting surfaces and reducing stress concentrations
• Consistent performance through SAE standard compliance, guaranteeing interchangeability and reliability
• Durable construction with 0.136-0.213" thickness range, providing structural integrity under pressure
• Environmental compliance with REACH regulations, ensuring safe use in industrial applications
• Non-magnetic and non-sparking properties of brass, enhancing safety in sensitive electrical or explosive environments

Professional Applications & Engineering Value

These SAE brass flat washers deliver exceptional engineering value in demanding industrial settings where corrosion resistance is critical. The brass material inherently resists rust and galvanic corrosion, making these flat washers perfect for marine applications, chemical processing equipment, and electrical enclosures exposed to moisture. The precise 1.375" ID ensures perfect fitment with 1 1/4" screw sizes, preventing loosening while the generous 2.5" OD distributes clamping force effectively across joined materials. This combination of inch system precision and brass composition solves common fastener failure points in harsh environments, extending assembly lifespan and reducing maintenance costs.

Specification Summary & Compliance

This SAE flat washer features dimensions of 1.375" inner diameter, 2.5" outer diameter, and thickness range of 0.136-0.213". Manufactured to SAE standards in the inch measurement system, it's designed specifically for use with 1 1/4" screw sizes. The washer is REACH compliant (EC 1907/2006) as of June 14, 2023, meeting environmental safety requirements for industrial applications across various sectors.