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Lycoming/Aircraft Fuel Pump 900 Fitting

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Part# 07-00782
MFR Model# 6C5OX-S


These fittings are designed to fit mechanical fuel pumps used on Lycoming engines. These fittings feature 3/8" AN flare outlets for connection to aircraft hoses, and are available in straight, 45 and 90 angle versions.

Note: These fittings are not FAA approved.


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Good quality fitting at decent price.

Gary K
December 11, 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 is the thread size and type on the end that screws into mechanical fuel pump?

9/16-18 male straight threads to the pump.

Q: Does this part come with the O-ring that is shown? If Not what part # O-ring is Needed?

The o-ring is included.

Q: What material are these fitting made from? Steel, Stainless Steel, Brass chrome plated?

It is steel.

Q: This fitting is called out as a 3/8 AN, what dash number is it? AN-6. 3/8 AN is not a standard.

If you are referring to the THREAD Size, it looks like the -3 would be 3/8-24. The -6 is 9/16-18 with a TUBE O.D of 3/8.

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