Replacement for 90568489 (Banjo bolt on the lift pump) S111 Diesel LWB

While restoring a 1975 S3 Diesel the banjo bolt on the lift pump sheared, I've looked up the part number and it is 90568489. This part has been discontinued by Britpart unfortunately and i have only found one seller. Does anyone know of superseded part number for it, or an alternative that fits? If not what is the exact thread and diameter of the part?
Many Thanks Will

Have a look at this supplier https://www.ssldieselparts.co.uk/filter-head-banjo-fitting-p-374.html
I suspect they are 1/2UNF 20tpi.
SSL are also selling complete item on ebay at good price if tube and thread are correct.
eBay item number:320514728216 Seller assumes all responsibility for this listing.
Blanchards have it in stock
https://pablanchard.co.uk/index.php?route=product/search&search=90568489