S-95395A220 0.281" ID x 0.625" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass material ensures long-term reliability in harsh environments, reducing maintenance frequency
• Precise dimensional fit with 0.281" ID and 0.625" OD guarantees perfect alignment with 1/4" screws, preventing assembly issues
• Enhanced load distribution with optimal thickness range (0.105-0.130") minimizes surface damage and extends component lifespan
• Exceptional durability with Rockwell B60 hardness maintains structural integrity under repeated stress and vibration
• Full regulatory compliance with RoHS 3 and REACH standards ensures safe use in global industrial markets
• Reliable electrical conductivity inherent to copper alloys provides consistent performance in electrical applications
• Heavy-duty construction delivers consistent performance in demanding mechanical assemblies and equipment

Professional Applications & Engineering Value

This brass flat washer delivers critical engineering advantages where corrosion resistance and dimensional precision are paramount. The copper alloy composition inherently resists galvanic corrosion and oxidation, making it ideal for marine, chemical processing, and outdoor industrial equipment. With its specific 0.281" ID designed for 1/4" screw size applications, it prevents loosening from vibration while the 0.625" OD provides optimal surface coverage to protect sensitive materials from compression damage. The Rockwell B60 hardness ensures the washer maintains its form under sustained pressure, while the inch system measurement guarantees compatibility with North American machinery standards. These characteristics make it particularly valuable in electrical panels, plumbing systems, and precision instrumentation where reliable, long-term fastening solutions are essential.

Specification Summary & Compliance

This flat washer features precise inch-dimension specifications with 0.281" inner diameter, 0.625" outer diameter, and thickness ranging 0.105-0.130" for consistent performance with 1/4" fasteners. Manufactured to industry standards for industrial washers, it demonstrates Rockwell B60 hardness for mechanical durability. The product is fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloys and meets REACH (EC 1907/2006) requirements as of January 17, 2023, including 233 Substance of Very High Concern (SVHC) compliance.