S-90073A005 0.12" ID x 0.173" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws
Split Lock Washers for Socket Head Screws
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance prevents loosening under dynamic loads and mechanical stress
- Precise No. 4 screw compatibility ensures perfect fit and reliable fastening performance
- High-strength steel construction with Rockwell C38 hardness delivers exceptional durability and spring action
- ASME B18.21.1 compliance guarantees consistent quality and dimensional accuracy for industrial applications
- RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains
- Standard split lock design provides cost-effective, proven locking performance across various assemblies
- Optimized dimensions (0.12" ID, 0.173" OD, 0.022" thickness) enable easy installation and space-efficient designs
Professional Applications & Engineering Value
This split lock washer delivers critical vibration-resistant performance in demanding industrial environments where fastener integrity is paramount. Manufactured from high-grade steel with Rockwell C38 hardness, it maintains consistent spring tension to prevent back-off in machinery, electrical enclosures, and automotive assemblies using No. 4 screws. The split design creates continuous upward force that counters rotational loosening caused by thermal cycling and operational vibrations. Engineered to ASME B18.21.1 standards, this inch-system washer provides reliable dimensional consistency for maintenance and OEM applications where precision matters. Its RoHS 3 and REACH compliance makes it suitable for regulated industries requiring environmentally conscious components without sacrificing mechanical performance.
Specification Summary & Compliance
This standard split lock washer features precise inch dimensions (0.12" ID, 0.173" OD, 0.022" thickness) manufactured to ASME B18.21.1 specifications for dimensional accuracy and performance. The steel construction achieves Rockwell C38 hardness for optimal spring properties. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency for industrial applications worldwide.
