Cummins Rectangular Elastic Nut 3000528

The rectangular elastic nut 3000528 is precision manufactured from high-strength alloy steel, with a rectangular cross-section design that enhances locking and anti-loosening performance. It is specifically designed for fuel lines, filters, and critical connection points of B, C, and L series diesel engines. During installation, use a special tool to align the threads, pre-tighten, and then tighten to the specified torque, ensuring the contact surfaces are clean for reliable locking.