S-90231A129 1.25" ID x 2.25" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance ensures long-term reliability in humid, marine, and chemical environments
• Excellent electrical conductivity makes it ideal for electrical connections and grounding applications
• Non-magnetic properties prevent interference in sensitive electronic and instrumentation systems
• REACH-compliant brass construction meets stringent environmental and safety standards for industrial use
• Precise SAE inch dimensions (1.25" ID x 2.25" OD) provide reliable fit and consistent performance with 1 1/8" fasteners
• Durable brass material maintains integrity under vibration and thermal cycling conditions
• Wide thickness tolerance (0.108-0.160") accommodates varying assembly requirements while maintaining sealing capability

Professional Applications & Engineering Value

This SAE flat washer solves critical engineering challenges in demanding applications where standard steel washers would fail. The brass construction provides inherent corrosion resistance that prevents galvanic corrosion when used with dissimilar metals, making it essential for marine environments and coastal installations. Its electrical conductivity ensures reliable current transfer in electrical panels, grounding systems, and power distribution equipment. The non-magnetic properties make it indispensable for precision instrumentation, medical equipment, and aerospace applications where magnetic interference must be eliminated. The flat washer design distributes load evenly across 1 1/8" screw connections, preventing surface damage and maintaining joint integrity in plumbing systems, hydraulic fittings, and mechanical assemblies exposed to vibration and thermal expansion.

Specification Summary & Compliance

This brass flat washer features SAE standard dimensions with 1.25" inner diameter and 2.25" outer diameter, designed specifically for 1 1/8" screw size applications. The washer maintains standard inch system tolerances with thickness ranging from 0.108" to 0.160" to accommodate various assembly requirements. Manufactured from premium brass material, this component is fully REACH compliant (EC 1907/2006) as of June 14, 2023, meeting current substance restriction requirements for industrial and commercial use across global markets.