3682798
Hexagon Flange Nut
Cummins®

The Cummins 3682798 Hexagon Flange Nut is a specialized fastener designed for use in commercial truck maintenance and operation. This component is integral to ensuring the secure attachment of various parts within the truck’s system, contributing to the overall reliability and performance of the vehicle.

Basic Concepts of Hexagon Flange Nuts

A Hexagon Flange Nut is a type of fastener characterized by its hexagonal shape and the presence of a flange—a flat, circular plate—attached to one end. This design allows for efficient tightening and loosening using a wrench or socket, while the flange provides additional surface area to distribute load and prevent the nut from embedding into softer materials. In mechanical applications, these nuts are commonly used to secure components that require a high degree of stability and resistance to vibration ¹.

Purpose of the 3682798 Hexagon Flange Nut in Truck Operation

The 3682798 Hexagon Flange Nut plays a specific role in the operation and maintenance of commercial trucks. It is applied in areas where secure fastening is paramount to ensure structural integrity and performance. This includes, but is not limited to, securing engine components, transmission parts, and chassis assemblies. The nut’s design helps in maintaining the alignment and stability of these critical components, thereby contributing to the truck’s overall efficiency and durability ².

Key Features

The Cummins 3682798 Hexagon Flange Nut is distinguished by several key features that enhance its functionality and durability. Its hexagonal shape allows for straightforward installation and removal using standard tools. The flange design not only aids in distributing the load more evenly but also provides a barrier against loosening due to vibration. Additionally, the nut is crafted from high-strength materials, ensuring it can withstand the rigors of commercial truck operation.

Benefits of Using the 3682798 Hexagon Flange Nut

Utilizing the 3682798 Hexagon Flange Nut offers several advantages. The design of the nut improves fastening security, making it less prone to loosening over time, even under dynamic conditions. Its resistance to vibration loosening ensures that components remain securely fastened, reducing the risk of failure. Furthermore, the ease of installation and removal facilitates quicker maintenance procedures, contributing to overall operational efficiency ³.

Installation and Usage Guidelines

Proper installation of the 3682798 Hexagon Flange Nut is vital to ensure optimal performance and longevity. It should be installed using the appropriate tools to achieve the specified torque, which ensures the nut is tightened to the correct level without over-tightening. Best practices include inspecting the nut and the mating surface for cleanliness and damage before installation, and periodically checking the tightness of the nut during routine maintenance to prevent loosening.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Nuts include loosening due to vibration and corrosion. To troubleshoot these problems, regular inspections should be conducted to check for signs of wear or corrosion. Maintenance practices such as applying an anti-seize compound during installation can help prevent corrosion, while using lock washers or thread lockers can mitigate vibration-induced loosening. Promptly addressing any issues ensures the continued reliable performance of the nut.

Manufacturer Information - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and aftermarket parts. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and focus on technological advancement make it a trusted partner for commercial vehicle operators and maintenance professionals.

Hexagon Flange Nut 3682798 Compatibility with Cummins Engines

The Hexagon Flange Nut 3682798, manufactured by Cummins, is a versatile component that fits a variety of Cummins engines. This part is designed to ensure a secure and reliable connection in various engine configurations. Below is a detailed overview of its compatibility with different Cummins engines:

ISX Series Engines

• ISX CM870
• ISX CM871
• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

The ISX series engines benefit from the Hexagon Flange Nut 3682798, which is essential for maintaining the integrity of the engine’s flange connections. This part ensures that the flanges remain tightly secured, preventing leaks and maintaining optimal engine performance.

QSX Series Engines

• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The QSX series engines also utilize the Hexagon Flange Nut 3682798. This part is crucial for the flange connections in these engines, ensuring that all components are properly fastened and aligned.

QST Series Engines

• QST30 CM2350 T101
• QST30 CM552

The QST series engines incorporate the Hexagon Flange Nut 3682798 to secure flange connections. This ensures that the engine’s components are held together firmly, contributing to the overall reliability and efficiency of the engine.

QSB and QSK Series Engines

• QSB6.7 CM2350 B105
• QSB7 CM2880 B117
• QSK95 CM2350 K111
• QSK95 CM2350 K113

The Hexagon Flange Nut 3682798 is compatible with various QSB and QSK series engines. This part is essential for securing flange connections in these engines, ensuring that all components are tightly fastened and properly aligned.

ISG and X Series Engines

• ISG11 CM2880 G108
• ISG12 CM2880 G107
• ISG12 G CMOH6.0 G111
• X11 CM2670 X126B
• X12 CM2670 X121B
• X12N CMMDG1 X143B
• X13 CM2670 X122B

The ISG and X series engines also use the Hexagon Flange Nut 3682798. This part is crucial for securing flange connections in these engines, ensuring that all components are held together firmly and securely.

B6.7 and F2.8 Series Engines

• B6.7 CM2670 B164C
• F2.8 CM2620 F135B

The B6.7 and F2.8 series engines incorporate the Hexagon Flange Nut 3682798 to secure flange connections. This ensures that all components are tightly fastened and properly aligned, contributing to the engine’s overall reliability and efficiency.

L8.9 Series Engine

• L8.9 CM2670 L134C

The L8.9 series engine utilizes the Hexagon Flange Nut 3682798 to secure flange connections. This ensures that all components are held together firmly, contributing to the engine’s overall reliability and efficiency.

The Hexagon Flange Nut 3682798 is a critical component for maintaining the integrity of flange connections in a wide range of Cummins engines. Its compatibility with various engine series ensures that all components are securely fastened, contributing to the engine’s overall performance and reliability.

Role of Part 3682798 Hexagon Flange Nut in Engine Systems

The part 3682798 Hexagon Flange Nut is integral to securing various components within engine systems, ensuring stability and proper function. It is commonly used in the fastening of the air shutdown device and air shutoff valve, which are essential for controlling the airflow to the engine. This nut ensures that these valves remain securely in place, preventing any unwanted air leaks that could affect engine performance.

In the arrangement of exhaust recirculation air and the turbocharger, the Hexagon Flange Nut plays a significant role. It is employed to fasten components that manage the flow of exhaust gases, contributing to efficient recirculation and boosting engine performance. The secure attachment of the breather in the crankcase is another application, where the nut helps maintain pressure balance within the crankcase, essential for the engine’s lubrication system.

At the connection of the exhaust outlet, the Hexagon Flange Nut ensures a tight seal, preventing exhaust leaks that could lead to performance issues or increased emissions. It is also used in the fuel system, particularly in the fuel drain plumbing and fuel supply plumbing, to secure connections that are vital for the consistent delivery of fuel to the engine.

The nut is instrumental in the installation of the harness for electronic control module wiring. This ensures that the wiring remains securely attached to the engine control module and fuel control module, facilitating reliable communication and control signals within the engine system.

In the plumbing of the cylinder block and fuel drain, the Hexagon Flange Nut secures critical connections that are essential for the engine’s operation and maintenance. It is also used in the plumbing of the fuel supply to ensure that fuel lines are firmly connected, preventing leaks and ensuring a steady fuel supply to the engine.

Additionally, the nut is employed in the installation of the primer for engine lubricating, ensuring that the lubrication system components are securely fastened. In the recirculation of exhaust and the attachment of the shroud to the engine cooling fan, the Hexagon Flange Nut ensures that these components are firmly in place, contributing to efficient engine cooling and exhaust management.

Conclusion

The Cummins 3682798 Hexagon Flange Nut is a critical component in the maintenance and operation of commercial trucks. Its design and features ensure secure fastening of various engine components, contributing to the overall reliability and performance of the vehicle. Proper installation, regular maintenance, and prompt troubleshooting are essential to maximize the benefits of this part.