What Thread on Volvo fuel hose 840263?

Kurrawong_Kid

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There is a female connector on one end of this hoze and the other is connected to the fuel pump with a union. When winterising the engine I carelessly crossed the thread of the connector at its joint with the pipe work. I have obtained a replacement hoze but, as yet, have been unable to discover what thread it is. I thought it was 1/2" UNF but, although close, that will not fit. Has anyone any idea of the thread? There is what appears to be an oblong with a 3 or 9 within it stamped on the connector. Thanks in anticipation.
 
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