S-90436A170 0.531" ID x 1.25" OD Magnetic Washers

Key Features & Benefits at a Glance

• Exceptional holding power with 7.2 lbs maximum pull force from the N50 rare earth magnet for reliable component retention.
• Corrosion-resistant nickel plating enhances durability and provides a long-lasting, conductive surface in demanding environments.
• Through-thickness magnetization ensures a strong, uniform magnetic field directed axially for optimal performance in assembly.
• Precise dimensional fit with a 0.531" ID and 1.25" OD designed to accommodate standard 1/2" screws seamlessly.
• High-temperature resilience, maintaining magnetic properties in applications up to 140°F for consistent operation.
• Compliance with major regulations, including RoHS 3 and REACH, ensuring safety and environmental standards are met for global industrial use.
• Compact and robust design with a thin profile (0.055-0.069" thickness) for space-saving integration without sacrificing magnetic strength.

Professional Applications & Engineering Value

This N50 neodymium magnetic washer is engineered to solve critical challenges in industrial settings where secure, temporary fastening or magnetic holding is essential. Its rare earth magnet core and through-thickness magnetization deliver a concentrated magnetic field, ideal for jigs, fixtures, and automation systems requiring precise alignment and strong retention forces. The nickel-plated finish resists wear and corrosion, extending service life in harsh conditions, while the flat washer design ensures easy integration with 1/2" screws. By providing up to 7.2 lbs of pull force and operating reliably at temperatures up to 140°F, it supports applications in electronics, manufacturing, and robotics, where magnetic performance must not compromise on durability or regulatory compliance.

Specification Summary & Compliance

This magnetic washer adheres to inch system dimensions with an ID of 0.531", OD of 1.25", and thickness ranging from 0.055" to 0.069", ensuring compatibility with 1/2" screw sizes. It is manufactured using N50 grade neodymium with through-thickness magnetization for consistent magnetic output. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and suitable for use in regulated industrial and electronic applications.