S-90127A030 0.323" ID x 0.717" OD Heavy-Vibration-Resistant Spring Lock Washers

Key Features & Benefits at a Glance

• Superior vibration resistance through spring lock design that maintains consistent tension under dynamic loads
• Enhanced locking performance with top serration pattern that bites into mating surfaces to prevent loosening
• Exceptional durability with Rockwell C40 hardened steel construction for long service life in demanding applications
• Precise dimensional compatibility with 5/16" fasteners and 0.717" OD for reliable fit in standard assemblies
• Reduced maintenance requirements through corrosion-resistant steel material that withstands industrial environments
• Compliance assurance with RoHS 3 and REACH regulations for global market acceptance and environmental safety
• Optimized spring action with controlled thickness (0.052-0.058") ensuring consistent load distribution and tension maintenance

Professional Applications & Engineering Value

This 5/16" spring lock washer delivers critical engineering value in applications where vibration-induced loosening compromises assembly integrity. The top serration design provides aggressive biting action into both the fastener head and bearing surface, creating mechanical interference that resists rotational movement. Manufactured from hardened steel with Rockwell C40 hardness, this washer maintains its spring properties under repeated loading cycles, making it ideal for heavy machinery, automotive assemblies, and industrial equipment subjected to constant vibration. The precise 0.717" OD and 0.323" ID dimensions ensure proper seating and load distribution while the inch system compatibility simplifies integration into North American industrial specifications. This combination of mechanical locking action and material durability addresses the fundamental challenge of maintaining bolted joint integrity in high-vibration environments.

Specification Summary & Compliance

This spring lock washer features inch system dimensions with 0.323" inner diameter and 0.717" outer diameter, specifically engineered for 5/16" screw applications. The component maintains precise thickness control between 0.052-0.058" with an overall height of 0.095" to ensure consistent spring performance. Manufactured to industrial standards using Rockwell C40 hardened steel, this washer provides reliable mechanical properties for locking applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial components while maintaining the mechanical integrity required for vibration-resistant fastening systems.