S-90073A006 0.133" ID x 0.202" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws

Key Features & Benefits at a Glance

• Superior vibration resistance from the split lock design, preventing fastener loosening in high-stress environments
• Exceptional durability with Rockwell C38 hardness steel construction, ensuring long service life under repeated loading
• Precise dimensional fit with 0.133" ID specifically engineered for No. 5 screws, providing reliable installation
• Industry-standard compliance with ASME B18.21.1 specifications, guaranteeing interchangeability and quality assurance
• Environmental responsibility through RoHS 3 and REACH compliance, meeting global regulatory requirements
• Optimized spring action from the standard split configuration, maintaining constant tension and seating force
• Corrosion resistance inherent in steel material, suitable for various industrial environments

Professional Applications & Engineering Value

This split lock washer delivers critical engineering solutions for applications where vibration resistance is paramount. The steel construction with Rockwell C38 hardness provides the ideal balance of strength and flexibility, ensuring the washer maintains constant spring tension against No. 5 screws in demanding environments. Engineered to ASME B18.21.1 standards, this inch system washer addresses common industrial challenges including fastener loosening, equipment vibration, and maintenance frequency. The precise 0.133" internal diameter and 0.202" outer diameter create optimal load distribution while the 0.030" thickness ensures compatibility with standard fastening systems. Ideal for machinery, automotive assemblies, electrical enclosures, and industrial equipment where reliable vibration-resistant fastening is essential for operational safety and reduced downtime.

Specification Summary & Compliance

This split lock washer features precise inch dimensions with 0.133" ID, 0.202" OD, and 0.030" thickness, manufactured to ASME B18.21.1 standards for dimensional accuracy and performance. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety. Designed specifically for No. 5 screw applications, this standard split lock washer type delivers reliable performance in industrial fastening systems requiring vibration resistance and secure locking action.