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  3. AEROQUIP FCM5099

AEROQUIP FCM5099 Locknut 678146020628

Fcm5099 Aeroquip - Alum #4 Locknut Black

( Brand: Aeroquip ), ( Manufacturer Part Number: FCM5099 ), ( UPC: 678146020628 ), ( Type: Hardware, Fasteners And Fittings )

Review AEROQUIP Alum #4 Locknut Black

The Aeroquip FCM5099 Alum Locknut is a crucial component in the automotive and industrial sectors, designed for use with aluminum tubing and hose assemblies. This locknut is engineered to provide a secure and leak-free connection, ensuring optimal system performance.

The FCM5099 Alum Locknut is manufactured from high-strength aluminum alloy, which offers superior corrosion resistance. This feature is particularly important in applications where the locknut is subjected to harsh environments, such as those involving exposure to extreme temperatures, humidity, or chemicals.

The locknut's external hexagonal shape facilitates easy installation and removal using common socket wrenches. Its precise machining ensures a snug fit on the aluminum tubing, minimizing the potential for leaks or damage to the tubing.

The FCM5099 Alum Locknut comes with an integral lockwasher, which helps to prevent the nut from loosening during operation. The lockwasher's unique design provides additional grip on the tubing, reducing the risk of the nut working itself loose over time.

This locknut is suitable for use with various hydraulic and industrial applications, including automotive brake systems, industrial hydraulic cylinders, and other fluid power systems. Its robust construction and reliable sealing properties make it an ideal choice for high-performance and mission-critical applications.

In summary, the Aeroquip FCM5099 Alum Locknut is a premium-quality, corrosion-resistant locknut designed for use with aluminum tubing and hose assemblies. Its hexagonal shape, integral lockwasher, and precise machining ensure a secure and leak-free connection, providing unrivaled performance and reliability in even the most demanding applications.

AeroQuip FCM5099 Alum Locknuts are used in automotive and industrial applications to secure hoses and tubing. Here are some potential pros and cons of buying these locknuts:

Pros:

1. High-quality material: AeroQuip Alum Locknuts are made of aluminum, which is lightweight yet strong. This makes them ideal for use in applications where weight is a concern.

2. Leak-free: These locknuts are designed to provide a leak-free seal, ensuring that the hoses and tubing they secure remain intact and functional.

3. Easy to install: AeroQuip Alum Locknuts are easy to install, requiring no special tools.

4. Corrosion resistance: The aluminum material of these locknuts makes them resistant to corrosion, which is important in industrial applications where the locknuts may be exposed to harsh environments.

Cons:

1. Cost: AeroQuip Alum Locknuts may be more expensive than other types of locknuts due to their high-quality materials and manufacturing process.

2. Size limitation: AeroQuip Alum Locknuts are available in a limited range of sizes, so they may not be suitable for all applications.

3. Requires proper torque: Proper torque must be applied when installing these locknuts to ensure a secure and leak-free connection.

In conclusion, AeroQuip FCM5099 Alum Locknuts offer several advantages, including high-quality materials, leak-free seals, ease of installation, and corrosion resistance. However, they may be more expensive than other types of locknuts and may not be available in all sizes. Ultimately, the decision to buy these locknuts depends on the specific requirements of your application and your budget.

If you need a high-quality, leak-free, and corrosion-resistant locknut for a critical application, AeroQuip FCM5099 Alum Locknuts are an excellent choice. However, if cost is a concern or if you require a larger size, you may want to consider other options.

Details:

Eaton's Aeroquip Performance Products are manufactured in the USA with a focus on Racing and Street markets. The Aeroquip product line includes adapters, fittings, hoses, couplings, tooling, and accessories.

part #: fcm5099 prices

  • $17.99-$25.51

specifications toolssupp:

  • brand: Aeroquip
  • mpn: Fcm5099
  • upc: 678146020628
  • type: Hardware, Fasteners And Fittings

payments toolssupp:

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returns toolssupp:

  • policy: Returns Accepted
  • time: 30 Days
  • paid by: Seller

offer toolssupp:

  • sold: 0
  • started: November 1, 2025
  • options: Ship-to-home
  • availability: In Stock

shipping toolssupp:

  • type: Fixed
  • service: Standard
  • transit: 3-5 Days
  • cost: $0.00
  • class: Standard

general toolssupp:

  • Motors > Automotive Tools Supplies > Other Auto Tools Supplies
  • condition: New

seller toolssupp:

  • # reviews: 45285
  • city: Saint Paul, Minnesota
  • rating: 97.3%
type: hardware, fasteners and fittings,
category: auto parts > tools supplies > auto tools supplies, sku: 9518845057924632,

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5 offers $17.99–$25.51 USD
  • Offer #1: $17.99 price + $0.00 shipping estimate = $17.99* total. Manufacturer: Aeroquip.FREE SHIPPING
  • Offer #2: $25.51 price + $0.00 shipping estimate = $25.51* total. Manufacturer Warranty.FREE SHIPPING
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  • Offer #4: $23.30 price + $0.00 shipping estimate = $23.30* total. Locknut; -04AN Dash Size; Aluminum; Black Anodized; 2 Per Package;.FREE SHIPPING
  • Offer #5: $20.81 price + $0.00 shipping estimate = $20.81* total. We engineer and test each hose length and fitting to stringent factors of safety and our hoses and fittings are tested to work together as an assembly ensuring a proper fit.FREE SHIPPING

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