MS29513-338 O-RING

Part# MS29513-338
MFR Model# 3-1/4"


These MS29513 series O-rings are resistant to fuel and are ideal for applications such as fuel injection connections and primers. A small amount of fuel proof grease applied to these O-rings helps the installation and operation of primers. Not resistant to automotive fuels.
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Looks good but I ordered the wrong size. My fault.

Kit L Verified Purchase

MS29513-338 O-RING

November 4, 2021

I was missing 4 or so flap buttons on my port side flap. These fit perfectly...snapped right in place.

Bill H
May 19, 2021

Excellent quality.

Michael E
April 26, 2021

Came exactly as advertised

April 22, 2021

Couldnt get this Switch from Cessna, but found it here and it works perfectly.

April 15, 2021

Order arrived promptly, was well packed & correct.

William B
January 21, 2021

Just what I ordered and installed perfectly.

Scott C
January 20, 2021

Easy to pop in, as far as I can tell they look just like the originals, I just wish the head had rubber caps.

January 16, 2021

As advertised. Nice fit and seal properly.

Zac N
January 4, 2021

Product was as described and fit my aircraft.

Mike L
December 4, 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: What material is your MS29513-012 O-ring constructed of?

MS29513 is made of 70 Duro Nitrile material.

Q: MS29513-012 is listed with ID 3/8 and OD 1/2 and 1/16 thick 4/8(1/2) - 3/8 = 1/8 not 1/16 are the ID 3/8 and OD 1/2 correct?

Dims per the mil spec are between 0.359 inches and 0.369 inches hole id, 0.504 inches od, and between 0.067 inches and 0.073 inches cross sectional height. The dims are rounded to make it easier to identify the part.

Q: What gasket is needed for a Cessna vented fuel cap? Thanks

06-00987 is the part number for the Cessna fuel cap gasket.

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