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.
Good quality fitting at decent price.
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.
9/16-18 male straight threads to the pump.
The o-ring is included.
It is steel.
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.