S-90127A011 0.201" ID x 0.481" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through spring tension design that maintains constant pressure on fasteners
• Enhanced locking capability with precision top serrations that bite into mating surfaces for maximum holding power
• Exceptional durability with Rockwell C40 hardness rating ensuring long-term performance in demanding applications
• Precise dimensional fit with 0.201" ID specifically engineered for No. 10 screw sizes
• Reliable material performance using high-quality steel that withstands heavy-duty mechanical stress
• Optimal load distribution with 0.481" OD providing excellent surface coverage and pressure dispersion
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This No. 10 Spring Lock Washer delivers critical engineering solutions for industrial applications where vibration resistance and secure fastening are paramount. The steel construction with Rockwell C40 hardness ensures the washer maintains its spring properties under continuous stress, preventing loosening in machinery, automotive assemblies, and heavy equipment. The precision top serrations create multiple biting edges that dig into both the fastener and workpiece, providing positive mechanical locking that outperforms standard flat washers. With its 0.481" OD and optimized thickness range of 0.047-0.053", this inch system washer offers perfect compatibility with standard No. 10 fasteners while providing sufficient bearing surface to prevent damage to softer materials. The combination of mechanical locking action and spring tension makes this washer ideal for applications subject to thermal cycling, dynamic loads, and continuous vibration.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.201" inner diameter, 0.481" outer diameter, and thickness ranging from 0.047" to 0.053" with an overall height of 0.073". Manufactured to inch system standards for No. 10 screw compatibility, the washer achieves Rockwell C40 hardness for optimal spring performance and wear resistance. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant (updated 06/14/2023, 235 SVHC), ensuring environmental regulatory adherence for global industrial applications.