S-97725A231 0.406" ID x 0.656" OD Metal Sealing Washers

Key Features & Benefits at a Glance

• Superior electrical and thermal conductivity due to pure copper construction, ensuring efficient energy transfer in demanding applications
• Excellent corrosion resistance for long-lasting performance in harsh industrial and outdoor environments
• Precise dimensional fit with 0.406" ID specifically engineered for secure 3/8" screw fastening
• Optimal load distribution provided by 0.656" OD design, minimizing surface pressure and material stress
• Consistent performance reliability maintained through controlled 0.055-0.069" thickness variation
• Environmental compliance assurance with RoHS 3 and REACH adherence for global market acceptance
• Versatile industrial compatibility across electrical, plumbing, and mechanical assemblies requiring non-sparking properties

Professional Applications & Engineering Value

These copper flat washers deliver critical engineering solutions where conductivity and corrosion resistance are paramount. The copper material provides inherent advantages for electrical applications, ensuring minimal resistance in grounding systems, bus bars, and power distribution assemblies. The precise 0.406" inner diameter guarantees secure seating on 3/8" screws, while the 0.656" outer diameter optimizes surface contact area to prevent galvanic corrosion and distribute clamping forces evenly. In industrial settings, these washers solve common challenges like corrosion-induced failure in humid environments and provide reliable performance in high-temperature applications where other materials might degrade. The combination of dimensional precision and material properties makes them ideal for critical connections in electrical panels, automotive systems, and marine equipment.

Specification Summary & Compliance

This flat washer features precise inch-dimension specifications with 0.406" ID and 0.656" OD, maintaining thickness between 0.055-0.069" for consistent performance. Manufactured to standard flat washer specifications for 3/8" screw size applications. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, including the latest SVHC updates as of June 14, 2023, ensuring environmental safety and regulatory acceptance for international industrial markets.