S-90391A168 2.973" ID x 4.109" OD ANSI/ABMA 8.2 Spring Lock Washers for Slotted Bearing Nuts
Spring Lock Washers for Slotted Bearing Nuts
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior locking performance with external teeth and conical shape design to prevent loosening under vibration and dynamic loads
- Precision compatibility with 2.933"-12 screw sizes and chamfered bearing nut faces for seamless integration into existing assemblies
- Durable steel construction ensures long service life and reliable performance in demanding industrial environments
- Standardized dimensions (2.973" ID x 4.109" OD) guarantee consistent fit and function across multiple applications
- Compliant with ANSI/ABMA 8.2 standards for assured quality and interoperability in mechanical systems
- Environmental regulation compliance with RoHS 3 and REACH, making it suitable for global supply chains
- Optimized tooth location on the external edge provides maximum grip and resistance to rotation
Professional Applications & Engineering Value
This spring lock washer delivers critical anti-loosening protection in heavy machinery, automotive assemblies, and structural frameworks where vibration and cyclic loading are common. The conical shape and external tooth location create a powerful spring action that maintains clamp force, compensating for thermal expansion and material relaxation. Manufactured from high-grade steel, it withstands harsh operating conditions without compromising performance. Engineers specify this washer for ANSI/ABMA 8.2 compliant bearing nut systems, ensuring reliable locking in precision equipment, conveyor systems, and industrial gearboxes where failure is not an option.
Specification Summary & Compliance
This spring lock washer meets dimensional requirements per ANSI/ABMA 8.2 with ID 2.973", OD 4.109", and thickness 0.077". Designed for screw size 2.933"-12 with chamfered bearing nut face style. The washer conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industries. External tooth configuration provides consistent locking action across standard inch-measured assemblies.
