Washer Nord Lock AN 133 M20 stal 254 SMO
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Specifications |
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| Article no. |
133-20-254SMO |
| Type | Toothed |
| Standard | AN 133 |
| Diameter, mm | 20 |
| Material | Steel 254 SMO |
| Outer diameter, mm | 30.7 |
| Thickness, mm | 3.4 |
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A Nord-Lock washer is a washer consisting of two identical washers, one side of which features radial notches that exert a force on the mating surfaces, while the other side features wedges that reinforce the preload under vibration.
Application: DIN 133 is used in construction and heavy machinery to prevent fasteners from loosening under high dynamic loads and vibration. Among all types of self-locking or locking fasteners, these washers provide the most effective results. As a result, these washers are widely used in the construction of railway transport, port cranes, wind turbines, etc.
Material: 254 SMO steel. 254 SMO is a high-alloy super-austenitic stainless steel containing elevated levels of chromium, nickel, molybdenum, and nitrogen. Thanks to this composition, it is twice as strong as 300 series steel and demonstrates exceptional resistance to aggressive environments.
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