S-90391A171 3.395" ID x 4.625" 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
• Precise compatibility with 3.340"-12 screw sizes and chamfered bearing nuts for seamless assembly integration
• External tooth configuration provides maximum bite and anti-rotation performance on mating surfaces
• Heavy-duty steel construction ensures long-term reliability in demanding industrial environments
• ANSI/ABMA 8.2 compliance guarantees dimensional accuracy and consistent performance standards
• Full regulatory compliance with RoHS 3 and REACH standards for safe, environmentally responsible usage
• Optimized dimensional profile with 4.625" OD and 0.077" thickness for balanced strength and space efficiency

Professional Applications & Engineering Value

This spring lock washer delivers critical vibration mitigation in heavy machinery, automotive assemblies, and structural applications where 3.340"-12 screw systems require reliable locking performance. The conical shape and external tooth design work synergistically to prevent loosening under cyclic loading, while the chamfered bearing nut face ensures proper seating and load distribution. Manufactured from high-grade steel, this washer maintains its spring properties through repeated compression cycles, addressing the fundamental challenge of fastener relaxation in high-vibration environments. The combination of ANSI/ABMA 8.2 specifications and inch-system dimensions makes it ideal for North American industrial equipment maintenance and OEM applications requiring standardized, interchangeable components.

Specification Summary & Compliance

This spring lock washer features precise inch-dimensioning with 3.395" ID, 4.625" OD, and 0.077" thickness, engineered for 3.340"-12 screw applications. Manufactured to ANSI/ABMA 8.2 standards with external tooth placement and chamfered bearing nut face geometry. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety standards are met for industrial distribution and use.