304 SEAMLESS 1/4X.035 1FT

Part# 03-16030-1
O.D. (In.)Wall (In.)Part No.
304 Seamless1/4.03503-16030-1


If manufacturing test reports are required, there is a minimum $15.00 charge per order. Please indicate in the special instructions box at the time of order that certs are required.
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Nice quality.

Jim W Verified Purchase

304 SEAMLESS 1/4X.035 1FT

April 16, 2024

Great material and service is always top notch!

Randall A
March 5, 2021

Good material and nice finish

Kenwood R
January 27, 2021

I always get tubing from aircraft spruce. Its great quality and arrives at my house in less than 2 days.

December 15, 2020

Have bought this tubing in many sizes . Bends and flares nicely . I will buy more . Shipping is very fast .

Tom C
May 29, 2020

Was presented and arrived on time

Flying D
April 22, 2018

As advertised

April 12, 2018

Karl H
February 8, 2017


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: Can this 304 stainless tubing be formed & flared like soft aluminum tubing?

Yes, but a heavy duty flaring tool designed for stainless steel must be used.

Q: Is this 3/16 stainless tubing annealed? If not, is it still bendable?

Yes, it is annealed material.

Q: Is the 1 1/2 X .035 Seamless 321 SS tubing annealed?

Yes, Part # 03-16560 tubing is annealed.

Q: What is the ID of part number 03-16540 and 03-16300?

The ID can be calculated as the OD minus the Wall Thickness. 03-16540 has ID 1.222" and 03-16300 has ID 1.715".

Q: Can the 304 1/8 be coiled for shipping?

Yes, we can coil 304 up to 3/8 inch thickness for shipping. Be advised that requesting this material coiled makes the material final sale. We will not accept returns on coiled 304.

Q: Does the material certification for the 1/8 diameter x .020 wall 304 seamless tubing have ASTM A269 on it? Part number 03-00148

Yes, this is printed on the tubing.

Q: Can the 5/8 tubing be used as fuel line? Also what is the bursting pressure or pressures its rated for?

Its cold drawn and seamless so we would imagine it would be fit for pressurized use, but we cannot comment on its particular application for aerospace fuel lines. The customer needs to make this determination. The working pressure is 8800 PSI, and bust pressure 13,700PSI. This is a safety factor of 1.0.

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