Flared fuel pipe fitting in the British style, for petcocks used on just about all British machines from 1971-on, and most Triumph and Norton much earlier.  If your petcock uses a separate 1/4 BSP fitting to attach the fuel line, this is it.  Straight and differently angled fittings available in other listings.

This listing is for the ONE pipe assy shown, this one includes the nut.  I will answer questions promptly, good luck and thanks for looking.