S-90127A112 0.161" ID x 0.402" OD Heavy-Vibration-Resistant Spring Lock Washers
Heavy-Vibration-Resistant Spring Lock Washers
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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 vibration resistance through top serration design that bites into mating surfaces to prevent loosening under dynamic loads
- Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding industrial environments
- Consistent performance maintained by Rockwell C40 hardness rating ensuring dimensional stability under compression
- Precise compatibility with No. 8 screws through exact 0.161" ID sizing for secure fastener assemblies
- Optimized load distribution with 0.402" OD providing wider bearing surface for improved joint integrity
- Reliable thickness tolerance (0.036-0.042") ensuring predictable spring tension and consistent locking force
- Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications
Professional Applications & Engineering Value
This zinc-plated steel spring lock washer delivers critical vibration resistance in mechanical assemblies where dynamic loads and thermal cycling threaten joint integrity. The top serration technology creates micro-engagement points that mechanically lock against surface irregularities, effectively solving common loosening problems in automotive, machinery, and electrical enclosure applications. Engineered with Rockwell C40 hardness, this industrial-grade fastener maintains its spring properties under repeated compression cycles, while the corrosion-resistant zinc plating ensures long-term reliability in harsh operating conditions. The precise 0.161" ID provides perfect alignment with No. 8 screws, eliminating play and ensuring uniform load distribution across the 0.402" OD bearing surface.
Specification Summary & Compliance
Manufactured to inch system standards with critical dimensions including 0.161" ID, 0.402" OD, and thickness range of 0.036-0.042". Features top-located serrations and Rockwell C40 hardness rating for consistent spring performance. This spring lock washer complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring restricted substance compliance.
