Correct fittings size for fuel pipe Lister A

I need to make some fuel pipes up for my Lister A, am correct in thinking that the copper pipe is 5/16th diameter and where would i get the Nut Olive & Nipple, have seen these listed below are they the correct fitting ???

1x Solder Nut Olive & Nipple Copper Petrol Fuel Pipe 1/4"BSPP x5/16" Tube OD
size:1/4" Inside Dia
Typeofthread:1/4" BSP

any help advice appreciated,

Geoff

Hi Geoff
I have a Lister A right or wrong it has a 5/16 flow and 3/8 return and I had what you/r after from Vintage Supplies Ltd Norfolk Phone01692 406510 the ones I had were as I remember part no 354 for 5/16 solder on nipples &nuts and 355 for 3/8solder on nipples & nuts . Nice chap on the phone reasonable and good fast service but if you look at Vintage Car Parts you/l find them Hope this of use to you All the Best Tony

Tony,
many thanks for your help, i have been looking through different posts and was still not sure, so its good to get the info from someone who has been there, again many thanks,
Geoff