S-90391A115 20 mm ID x 36 mm OD DIN 5406 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 vibration resistance through external conical teeth that maintain constant tension under dynamic loads
- Precise M20 screw compatibility with 20mm ID ensuring perfect fit and optimal load distribution
- Chamfered bearing nut face design prevents galling and facilitates smooth installation
- Dual DIN standard compliance (DIN 5406 & DIN 981) guarantees consistent performance in demanding applications
- Robust steel construction provides reliable spring action and long-term durability
- Environmental regulation compliance with RoHS 3 and REACH standards for global supply chain compatibility
- Optimized conical geometry delivers consistent locking force across thermal expansion cycles
Professional Applications & Engineering Value
This M20 spring lock washer addresses critical vibration-induced loosening in heavy machinery, automotive assemblies, and industrial equipment. The external tooth configuration creates multiple biting points that resist rotational forces, while the conical spring shape maintains constant axial pressure under compression and thermal cycling. Manufactured from high-grade steel and engineered to DIN 5406 and DIN 981 standards, this washer provides reliable performance in high-stress environments where conventional flat washers fail. The chamfered bearing nut face prevents thread damage during installation, making it ideal for precision assembly applications requiring repeated maintenance cycles.
Specification Summary & Compliance
This metric spring lock washer features precise dimensions (20mm ID × 36mm OD × 1mm thickness) with external tooth location and 3.5mm overall height. Manufactured in compliance with DIN 5406 for dimensional accuracy and DIN 981 for bearing nut interface specifications. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring global regulatory compliance for industrial applications requiring vibration-resistant locking solutions.
