S-91101A029 0.26" ID x 0.487" OD ASME B18.21.1 Split Lock Washers
Split Lock Washers
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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 with Rockwell C38 hardness for reliable long-term fastening in high-stress environments
- Precise dimensional compatibility with 0.26" ID and 0.487" OD ensuring perfect fit for 1/4" screw applications
- Enhanced spring action from the standard split design maintains constant tension and prevents loosening
- Robust steel construction delivers exceptional durability and corrosion resistance for industrial settings
- Industry-standard compliance with ASME B18.21.1 guarantees consistent quality and performance
- Environmental responsibility through RoHS 3 and REACH compliance for safe usage in regulated industries
- Optimized thickness (0.062") provides ideal balance between spring force and space requirements
Professional Applications & Engineering Value
These steel split lock washers are engineered to solve critical vibration-induced loosening problems in industrial assemblies. The Rockwell C38 hardness ensures the spring steel maintains its tension under continuous stress, while the precise 0.26" ID and 0.487" OD dimensions guarantee proper seating on 1/4" screws. The split lock design creates constant radial pressure that counters rotational forces in machinery, automotive, and heavy equipment applications. Manufactured to ASME B18.21.1 standards, these washers deliver predictable performance in demanding environments where fastener integrity is non-negotiable. The combination of vibration resistance and regulatory compliance makes them ideal for OEM and MRO applications across multiple industries.
Specification Summary & Compliance
This standard split lock washer features precise inch system dimensions: 0.26" internal diameter, 0.487" external diameter, and 0.062" thickness, specifically designed for 1/4" screw applications. Manufactured in compliance with ASME B18.21.1 specifications for dimensional accuracy and performance requirements. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations regarding chemical substances, ensuring environmental responsibility and workplace safety.
