Aeroflow Stainless Steel Hard Line 3/8" (9.5mm) 25ft (7.6m) Roll AF66-3000SS

Aeroflow Stainless Steel Hard Line 3/8" (9.5mm) 25ft (7.6m) Roll

Aeroflow Performance 304 stainless steel hard lines are aircraft-quality, seamless thin wall tubes that are double annealed for easier flaring and bending. This stainless-steel brake, fuel, or oil line is ideal for routing lines along the chassis, framerails, or anywhere flexible line is not required. These stainless-steel hard lines are rated for up to 6000 psi and designed for use with tube line adapter fittings or when using a flaring tool with tube nut/tube sleeve combinations.

The hard line is available in 25-foot rolls (7.6 meters) of 3/16" (4.76mm), 1/4" (6.35mm), 5/16" (7.95mm), 3/8" (9.52mm), or 1/2" (12.7mm) outside diameter tubing. Stainless steel tube is manufactured to ASTM-A269 standards.

NOTE: Stainless steel is more difficult to bend and flare compared to typical steel line. We recommend that a professional-grade flaring tool be used with these lines. Stainless steel can also be difficult to seal when replacing an existing brake or fuel line. The previously installed line can create a wear pattern on the flare seat which will not allow the new stainless-steel flare to seal properly. When replacing an existing line, we recommend a thorough inspection of the existing brake fitting, fuel fitting, junction block, wheel cylinder, brake caliper, etc. It's possible that the existing component may need to be replaced for a proper seal.

Key features

• Manufactured from aircraft-quality 304 stainless steel for durability.
• Seamless thin wall tube for efficient routing and installation.
• Double annealed for easier flaring and bending.
• Rated for up to 6000 psi, suitable for high-pressure applications.
• Available in multiple sizes to meet various project needs.
• Complies with ASTM-A269 standards for quality assurance.

Technical details

• Material: 304 stainless steel.
• Diameter: 3/8" (9.5mm) outside diameter.
• Length: 25 feet (7.6 meters) roll.
• Pressure rating: Up to 6000 psi.
• Manufactured to ASTM-A269 standards.

Applications / fitment

This stainless steel hard line is typically used in automotive and industrial applications where flexible lines are not suitable.

• Ideal for brake line installations in vehicles.
• Suitable for fuel line routing in performance and standard vehicles.
• Can be used for oil lines in automotive and machinery applications.
• Perfect for custom chassis builds and modifications.
• Applicable in off-road vehicles and fleet maintenance.

Why buy from Mick’s Gone Bush?

• Trusted Australian business focused on reliable power, auto-electrical, and service parts.
• Stock sourced from reputable distributors and brands.
• Practical support for trade, off-grid, and fleet customers.
• Clear shipping, warranty, and customer service.

Frequently asked questions

What tools do I need to install the Aeroflow stainless steel hard line?

We recommend using a professional-grade flaring tool for installation, as stainless steel can be more challenging to work with than typical steel lines.

Can this hard line be used for brake lines?

Yes, this stainless steel hard line is suitable for brake line installations, provided proper sealing and fitting inspections are carried out.

Is the stainless steel hard line easy to bend?

Stainless steel is generally more difficult to bend and flare compared to standard steel line, so careful handling is required.

What should I inspect when replacing an existing line?

Inspect the existing brake fitting, fuel fitting, junction block, wheel cylinder, brake caliper, and other components to ensure a proper seal.

How long is the roll of hard line?

The Aeroflow stainless steel hard line comes in a 25-foot (7.6 meters) roll.