3003-0 TUBE 3/16" OD X .028" W

Part# 03-40300
MFR Model# 500FT COIL
O.D. (in.)Wall ThicknessMax. Working Pressure*


Soft aluminum tubing for instrument air and vacuum lines, fuel and oil lines, and primer lines. Save 20% off lengths of 50+ ft.

Mfg test reports are available for an additional charge per line item.

*Safety factor of 2.
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


Just what I needed and great value

Gary B Verified Purchase

3003-0 TUBE 3/16" OD X .028" W

June 6, 2023

It is tubing

Jeffrey G Verified Purchase

3003-0 TUBE 3/16" OD X .028" W

January 22, 2023


Willamette A Verified Purchase

3003-0 TUBE 3/16" OD X .028" W

October 21, 2022

Ftt D Verified Purchase

3003-0 TUBE 3/16" OD X .028" W

September 28, 2022

This tubing is excellent for making fuel lines when paired with the proper and necessary nut/sleeve combination AN818 and AN819. Ensure you also have the proper flaring tool for 37 degree flares to mate with your AN connectors.

May 19, 2021

USA side of things perfect, now you have to speed the Australian side of thing up Haha thanks again guys Great work best regards Darryl

Darryl H
July 28, 2020

Worked perfectly

David B
June 24, 2020

Correct and prompt

June 6, 2020

Very easy to work and with happy with quality

Ron S
May 14, 2020

It was perfect for the fuel line project.

Jon G
April 30, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Do you have specs for weight per foot on the 1/8 and 1/4 aluminum versatube?

The 1/8 inch is approximately .009 lbs per ft and the 1/4 inch is approximately .026 lbs per foot.

Q: Is this soft and bendable like copper tubing?

Per the tech: short answer is yes. It is very similar in terms bend-ability to copper tubing.

Q: I need to use this for fuel line. Can it be flared to seal on AN fittings?

Yes, 3003-O can be flared for use with AN fittings.

Q: The photo shows this 3003 is coiled. Can it be shipped straight?

No, but 5052-0 alum tube is soft and is sold as straight tube. Not as soft as 3003, but can be bent and flared.

Q: Oops, I found the working pressures!

Ok great, we are glad you found the info you were looking for.

Q: What is the ID of PN 03-40700? My fuel lines are 3/8 ID so I am debating between the 1/2 inch OD vs. 3/8 OD.

03-40700 is 1/2" x .035" tube. I.D. is approx. .43".

Q: Can this 3003-0 tubing be used on GA aircraft? Does it have any FAA approval paperwork?

If a maintenance/repair manual of a certified aircraft requires 3003-0 aluminum tube, then this can be used. It, like most raw materials, do not have an FAA approval, but meet material specifications, and this cert can be purchased. If required, the material cert must be ordered with the material, at the time of order.

Q: Can this tube be used as a brake line on an experimental aircraft?

This is commonly used in experimental brake applications.

Q: Which bender works best on versatube? For 90 degree bends specifically.

The Imperial 470-FH should work great, our part number is 12-01042.

Q: How do I order the 50 roll? When I put in 50 it prices by the foot.

This material is priced and sold by the foot. If you would like 50 feet, enter quantity as 50. If you would like 50 yards, enter quantity as 150.

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