S-90127A029 0.254" ID x 0.559" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through spring lock design that maintains constant tension under dynamic loads
• Enhanced locking performance with top serration pattern that bites into mating surfaces for secure fastening
• Exceptional durability with Rockwell C40 hardness steel construction that resists deformation and wear
• Precise dimensional compatibility with 0.254" ID and 0.559" OD ensuring perfect fit for 1/4" screw applications
• Reliable performance in demanding environments thanks to controlled thickness range of 0.049-0.055" for consistent spring action
• Regulatory compliance assurance with RoHS 3 and REACH compliance for global industrial applications
• Optimized load distribution through inch system specifications that meet North American industrial standards

Professional Applications & Engineering Value

This spring lock washer delivers critical engineering value in applications where vibration resistance is paramount. The top serration design creates multiple biting edges that dig into both the fastener and workpiece, preventing rotational loosening in machinery, automotive assemblies, and heavy equipment. Made from steel with Rockwell C40 hardness, this washer maintains its spring properties under repeated loading cycles, solving the common industrial problem of joint failure in high-vibration environments. The precise 0.254" ID ensures perfect alignment with 1/4" screws while the 0.559" OD provides optimal bearing surface. This combination of features makes it ideal for assembly lines, maintenance operations, and OEM applications where reliability cannot be compromised.

Specification Summary & Compliance

This spring lock washer features inch system dimensions including 0.254" internal diameter, 0.559" outer diameter, and thickness range of 0.049-0.055" with overall height of 0.087". Manufactured to industrial standards for 1/4" screw size applications with top serration location and Rockwell C40 hardness material properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental standards for industrial components as of June 14, 2023, including 235 SVHC substances.