S-95395A226 0.344" ID x 0.688" OD Oversized Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from brass material, ideal for humid or chemical environments, extending service life and reducing replacement frequency.
• Enhanced mechanical strength with Rockwell B60 hardness, providing reliable load distribution and resistance to deformation under pressure.
• Precise dimensional accuracy (0.344" ID x 0.688" OD) ensures secure fit for 5/16" screws, minimizing loosening and improving assembly stability.
• Environmental compliance assurance with RoHS 3 and REACH standards, meeting global regulatory requirements for safe industrial use.
• Excellent electrical conductivity of brass allows for grounding applications in electrical assemblies, adding functional versatility.
• Durable surface integrity maintains performance in high-vibration settings, reducing maintenance needs in machinery and equipment.

Professional Applications & Engineering Value

This 5/16" brass flat washer is engineered to address common industrial challenges such as galvanic corrosion and fastener fatigue. The copper alloy composition naturally resists rust and oxidation, making it suitable for marine, plumbing, and electrical systems where moisture exposure is frequent. With a Rockwell B60 hardness, it withstands repeated torque and compressive forces in heavy-duty applications like automotive assemblies, machinery mounts, and HVAC systems. The precise inch-based dimensions (0.344" ID x 0.688" OD) ensure compatibility with standard 5/16" screws, preventing misalignment and distributing load evenly to protect sensitive components. Combined with RoHS 3 and REACH compliance, it offers a reliable, eco-conscious solution for OEMs and maintenance teams seeking longevity and regulatory adherence.

Specification Summary & Compliance

This washer adheres to standard inch system measurements with an inner diameter of 0.344", outer diameter of 0.688", and thickness ranging from 0.105" to 0.130". It is designed for 5/16" screw sizes and manufactured from brass material with a hardness of Rockwell B60. The product complies with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloys and is REACH (EC 1907/2006) compliant, meeting current SVHC requirements as of 01/17/2023.