S-90231A140 0.25" ID x 0.562" OD SAE Washers

Key Features & Benefits at a Glance

• Superior corrosion resistance from the nickel plating on brass, ideal for humid or chemically aggressive industrial environments.
• Reliable non-magnetic properties ensure consistent performance in electrical or sensitive electronic assemblies without interference.
• Precise dimensional fit with 0.25" ID and 0.562" OD, providing accurate alignment and load distribution for No. 12 screw sizes.
• Durable sealing and spacing with a controlled thickness range of 0.051-0.080", preventing loosening and enhancing joint integrity.
• Lightweight yet robust construction using brass material, reducing overall assembly weight without sacrificing strength.
• Compliance with environmental standards including REACH, ensuring safe use and meeting global regulatory requirements for industrial components.
• Broad compatibility with SAE and inch-system fasteners, simplifying sourcing and replacement in diverse machinery and equipment.

Professional Applications & Engineering Value

These Nickel Plated Brass SAE flat washers deliver critical engineering value by addressing common industrial challenges such as galvanic corrosion, vibration-induced failure, and magnetic interference. The brass core with nickel plating offers excellent corrosion resistance, making them suitable for marine, automotive, and plumbing systems where moisture and chemicals are prevalent. Their non-magnetic nature is essential in precision instruments, aerospace, and electronics, preventing data disruption or component damage. With a 0.25" ID and 0.562" OD, these washers ensure a snug fit for No. 12 screw sizes, distributing load evenly to reduce stress concentrations and extend the life of assembled parts. This combination of material properties and dimensional accuracy supports reliable sealing and spacing in high-demand applications, minimizing maintenance needs and downtime.

Specification Summary & Compliance

This SAE flat washer adheres to inch-system standards with an inner diameter of 0.25", outer diameter of 0.562", and thickness ranging from 0.051" to 0.080" for precise fit with No. 12 screw sizes. Manufactured from nickel plated brass, it meets general industry tolerances without a specific hardness rating. The product is REACH (EC 1907/2006) compliant as of June 14, 2023, covering 235 SVHCs, ensuring environmental safety and regulatory alignment for global industrial use.