S-90391A159 1.396" ID x 2.25" OD ANSI/ABMA 8.2 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Enhanced Vibration Resistance - Conical spring design maintains constant tension to prevent loosening under dynamic loads
• Optimized Tooth Engagement - External tooth configuration provides superior bite and anti-rotation performance
• Precision Fit for Critical Applications - 1.396" ID specifically engineered for 1.376"-18 screw sizes ensuring perfect alignment
• Durable Steel Construction - High-quality material offers excellent strength and corrosion resistance for long service life
• Industry Standard Compliance - Manufactured to ANSI/ABMA 8.2 specifications for reliable performance in demanding environments
• Chamfered Nut Compatibility - Designed specifically for chamfered bearing nut face styles for secure installation
• Environmental Regulation Compliance - Meets RoHS 3 and REACH requirements for global industrial applications

Professional Applications & Engineering Value

This spring lock washer addresses critical vibration-induced loosening challenges in heavy machinery and industrial equipment. The conical shape with external teeth creates a powerful spring action that maintains preload tension while the teeth dig into both bearing surfaces, preventing rotation and back-off. Made from high-grade steel, this washer delivers exceptional durability in demanding applications involving 1.376"-18 screw sizes and chamfered bearing nuts. The precise 2.25" OD and 0.054" thickness ensure optimal load distribution and space efficiency. Ideal for automotive assemblies, industrial machinery, and construction equipment where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

This spring lock washer features inch system dimensions with 1.396" ID, 2.25" OD, and 0.054" thickness, engineered for precise fit with 1.376"-18 screw sizes. Manufactured in compliance with ANSI/ABMA 8.2 standards for dimensional accuracy and performance requirements. The washer meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance standards, ensuring suitability for global industrial markets. Designed specifically for use with chamfered bearing nut face styles as specified in the ANSI/ABMA 8.2 bearing nut standards.