S-90391A157 1.193" ID x 1.922" OD ANSI/ABMA 8.2 Spring Lock Washers for Slotted Bearing Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through the conical spring design that maintains constant tension under dynamic loads
• Enhanced locking security with external teeth that bite into mating surfaces, preventing loosening in high-vibration environments
• Precision compatibility with 1.173"-18 screws and chamfered bearing nuts for seamless integration into existing assemblies
• Durable steel construction ensures long-term reliability and consistent performance in demanding industrial applications
• Standardized dimensions (1.193" ID × 1.922" OD) guarantee proper fit and function across compliant systems
• Industry compliance with ANSI/ABMA 8.2 specifications ensures consistent quality and interoperability
• Environmental responsibility with full RoHS 3 and REACH compliance for sustainable manufacturing operations

Professional Applications & Engineering Value

This external tooth spring lock washer delivers critical vibration resistance in heavy machinery, automotive assemblies, and industrial equipment where secure fastening is paramount. The conical spring lock washer design creates continuous spring tension that compensates for thermal expansion, material relaxation, and dynamic stresses. Manufactured from high-grade steel, it maintains its locking performance even under extreme operating conditions. The external teeth provide immediate biting action into both the bearing surface and fastener head, creating a positive locking mechanism that prevents rotational loosening. This ANSI/ABMA 8.2 compliant solution is particularly valuable in applications involving chamfered bearing nuts and 1.173"-18 threaded fasteners, offering engineers a reliable method to maintain joint integrity in vibration-prone environments.

Specification Summary & Compliance

This spring lock washer features precision dimensions including 1.193" internal diameter, 1.922" outer diameter, and 0.213" overall height with external tooth configuration. Manufactured to ANSI/ABMA 8.2 standards, it ensures dimensional accuracy and performance reliability for 1.173"-18 screw applications. The product maintains full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting sustainable manufacturing practices while delivering consistent locking performance in industrial fastening systems.