S-91475A710 0.314" ID x 0.583" OD ASME B18.21.1; MS35338-140 Mil. Spec. Split Lock Washers
Mil. Spec. 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 corrosion resistance from passivated 316 stainless steel construction, ideal for harsh industrial environments
- Reliable vibration resistance through the split lock design that maintains tension under dynamic loads
- Exceptional durability with Rockwell C35 hardness ensuring long service life and minimal deformation
- Precise fit for 5/16" screws with 0.314" ID and 0.583" OD dimensions for accurate fastener alignment
- Industry-standard compliance meeting ASME B18.21.1 and MS35338-140 specifications for guaranteed performance
- Environmental responsibility with full RoHS 3 and REACH compliance for sustainable operations
- Optimized thickness (0.078") providing ideal spring action while maintaining compact installation profiles
Professional Applications & Engineering Value
This split lock washer delivers critical engineering value in applications where vibration loosening poses significant operational risks. The passivated 316 stainless steel construction provides exceptional resistance to corrosive chemicals, saltwater, and extreme temperatures, making it ideal for marine equipment, chemical processing plants, and food processing machinery. The standard split lock design creates continuous spring tension that compensates for thermal expansion and vibration-induced slack, preventing costly fastener failure in heavy machinery, automotive assemblies, and structural frameworks. With its precise 5/16" screw compatibility and robust Rockwell C35 hardness, this washer maintains clamping force integrity even under sustained dynamic loading conditions common in manufacturing and infrastructure projects.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with 0.314" inner diameter, 0.583" outer diameter, and 0.078" thickness for consistent performance. Complies with ASME B18.21.1 and MS35338-140 specifications for split lock washers, ensuring proper spring characteristics and load distribution. Meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) environmental standards, confirming adherence to the latest regulatory requirements for hazardous substance restrictions.
