AEROQUIP FCM3676 Tube Nut 678146008268

( Brand: Aeroquip ), ( Part Type: Tube ), ( Performance Part: Yes ), ( Country Of Origin: United States ), ( Manufacturer Part Number: FCM3676 ), ( UPC: 678146008268 ), ( Material: Aluminum )

Review AEROQUIP Tube Nut

The Aeroquip FCM3676 tube nut is a high-performance fittings component designed for use in automotive and industrial applications. This tube nut, manufactured by the renowned Aeroquip brand, is engineered to provide superior strength and durability in demanding environments.

The FCM3676 tube nut is made of heavy-duty, forged steel, ensuring it can withstand high pressures and temperatures. Its robust design includes a unique, self-locking mechanism that seals against leaks and prevents the nut from coming loose, even under extreme conditions. The self-locking feature eliminates the need for lock nuts or other additional components, simplifying installation and reducing overall system complexity.

This tube nut is designed to fit 3/8 inch OD (Outside Diameter) tubing and features a 12 point flange, which provides excellent torque distribution for secure sealing. The FCM3676 tube nut is suitable for use with various fluids, including water, glycol, oil, and air, making it a versatile component in various applications.

The surface finish of the tube nut is sandblasted, which not only provides an excellent bonding surface for priming and painting but also helps prevent galling and seizure during installation and removal. The nut is also coated with a zinc electroplate finish to protect against corrosion, ensuring a long service life.

The Aeroquip FCM3676 tube nut is widely used in automotive applications such as cooling systems, fuel systems, power steering systems, and air conditioning systems. In industrial applications, it can be found in various fluid power systems, hydraulic systems, and pneumatic systems.

In summary, the Aeroquip FCM3676 tube nut is a high-quality, self-locking component designed for use in automotive and industrial applications. Its robust design, heavy-duty construction, and self-locking mechanism make it a reliable choice for sealing and securing 3/8 inch OD tubing in a wide range of fluid applications, while its corrosion-resistant finish ensures a long service life.

Aeroquip FCM3676 tube nuts are commonly used in automotive and industrial applications for securing hoses and tubes. Here are some pros and cons of buying these tube nuts:

1. High-quality materials: Aeroquip tube nuts are made from durable materials, such as brass or stainless steel, ensuring longevity and resistance to corrosion.

2. Secure connection: These tube nuts have a thread design that provides a secure connection between the hose or tube and the fitting, reducing the risk of leaks.

3. Easy installation: Aeroquip tube nuts can be installed easily using hand tools, making the process quick and straightforward.

4. Wide range of sizes: Aeroquip offers tube nuts in various sizes to accommodate different hose and tube diameters, ensuring a proper fit for various applications.

1. Cost: Compared to other types of tube nuts or fittings, Aeroquip tube nuts can be more expensive.

2. Limited compatibility: These tube nuts are specifically designed for use with Aeroquip hoses and tubes, making them less versatile than some other options.

3. Potential for overtightening: Over-tightening Aeroquip tube nuts can damage the hose or tube, leading to leaks or other issues.

In conclusion, Aeroquip FCM3676 tube nuts offer several advantages, such as high-quality materials, secure connections, and easy installation. However, they can be more expensive than other options and have limited compatibility. If the application requires a reliable and secure connection for an Aeroquip hose or tube, then these tube nuts would be a good investment. Otherwise, consider other options that may be more cost-effective or versatile.

part # fcm3676 prices

• $6.99-$19.90

specifications fuelperforma:

• brand: Aeroquip
• part type: Tube
• performance part: Yes
• country of origin: United States
• manufacturer part number: FCM3676
• upc: 678146008268
• material: Aluminum

payments fuelperforma:

• other
• wallet: Apple-pay
• credit card: Visa

shipping fuelperforma:

• carrier: USPS
• cost: $0.00
• service: USPS Ground Advantage
• type: Calculated
• transit: 3-8 Days
• class: Standard

offer fuelperforma:

• availability: In Stock
• quantity: 1
• started: March 17, 2026
• best offers: True
• sold: 0
• options: Ship-to-home

returns fuelperforma:

• policy: No Returns

seller fuelperforma:

• # reviews: 1968
• rating: 99.5%

general fuelperforma:

• condition: New
• Auto Permance Parts > Fuel Systems > Hoses, Lines Fittings

Aeroquip FCM3676 Is Similar To:

• Aeroquip Fcm3672 #8 Alm Tube Sleeve (70% similar) $8.99–$19.99. (March 17th, 2026)