S-90391A151 0.406" ID x 0.875" OD ANSI/ABMA 8.2 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through conical spring design that maintains constant tension under dynamic loads
• Reliable locking performance with external teeth that bite into mating surfaces to prevent loosening
• Precision dimensional compatibility with 0.391"-32 screw sizes and chamfered bearing nuts for seamless integration
• Durable steel construction ensures long-term performance in demanding industrial environments
• ANSI/ABMA 8.2 compliance guarantees consistent quality and interchangeability in mechanical assemblies
• Environmental regulation compliance with RoHS 3 and REACH standards for global market acceptance
• Optimized conical shape provides superior spring action compared to flat washers for enhanced security

Professional Applications & Engineering Value

This spring lock washer delivers exceptional engineering value in applications where vibration-induced loosening compromises assembly integrity. The conical steel construction with external tooth design creates multiple biting points that resist rotational forces in dynamic environments. Specifically engineered for use with 0.391"-32 screw sizes and chamfered bearing nuts, this washer addresses critical failure points in machinery, automotive, and industrial equipment. The ANSI/ABMA 8.2 compliance ensures dimensional precision and reliable performance in high-stress applications, while the spring action maintains constant preload even as components settle or wear. This makes it particularly valuable for maintenance-critical assemblies where downtime must be minimized.

Specification Summary & Compliance

This spring lock washer features precise dimensional specifications including 0.406" ID, 0.875" OD, and 0.125" overall height with external tooth configuration. Manufactured to ANSI/ABMA 8.2 standards for dimensional consistency and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global markets. Designed specifically for 0.391"-32 screw sizes with compatibility for chamfered bearing nut applications.