Aircraft Spruce Canada
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MS29513-031 O-Ring
MFR Model# MS29513-031
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| PN | ID | OD | Width |
|---|---|---|---|
| MS29513-031 | 1-3/4 | 1-7/8 | 1/16 |
Overview
| 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. |
Reviews
Verified Purchase
MS29513-031 O-Ring
good product
Worked great
Great service
As ordered, and fast delivery. Thank you for reasonable pricing of such small orders.
Did the trick!
Small but mighty! Good quality O rings!
These O rings fit and performed perfectly on the sump drain of my Kiowa helicopter.
These are o-rings. The -12 are the ones used on Scott fuel valves in some Senecas, Aztecs, and Seminoles. The maintenance manual says to lube them with stop lock grease, which is a made up term that no one is familiar with. The correct grease is DuPont Krytox 240AC, which is very expensive. Dont use anything else though, since the o-rings have to slide on every flight (if the checklist is followed), and failure of these o-rings could cause the fuel selector to get stuck on off, or crossfeed into the other tank. Kinda important. If the selector valve is hard to move, or you notice fuel cross feeding into opposite tank while parked, then these valves need overhaul. Takes forever to remove and reinstall.
Q&A
Please note, Aircraft Spruce Canada'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 Canada 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.
MS29513 is made of 70 Duro Nitrile material.
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.
