NF E25-510

Fasteners - Conical washers for bolted joints - CL symbol

Le présent document spécifie les dimensions et les caractéristiques des rondelles coniques lisses en acier, de diamètre nominal 5 mm à 20 mm. Il définit les essais à effectuer et la désignation. Les rondelles coniques lisses sont prévues pour une utilisation en statique dans un assemblage vissé (vis de classe de qualité 8.8 ou 10.9, et écrous correspondants) . Les rondelles ressorts dites " Belleville ", destinées à une utilisation en dynamique, font l'objet du document NF E 25-104.

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