Mike Parkin brake banjo.

"The hose came from MDO Aircraft when I bought their stick mounted hand brake caliper. (See attachment) I think M. Bastien of MDO Aircraft is based in Biarritz. I do know that some of our colleagues on this site have had trouble contacting him. A French person in France may have better luck"
http://www.merlinmotorsport.co.uk/p2936/LE-BANJO-20-3/8-POUR-ALLER-%C3%80-3/product_info.html
http://www.merlinmotorsport.co.uk/p2083/BANJO-BOLT-1/8-BSP-STEEL/product_info.html
http://www.merlinmotorsport.co.uk/advanced_search_result.php?keywords=1%2F8+bsp+copper+washer
"With regard to fitting the MDO supplied hose to the banjo coupling. Everything you need to secure the hose to the coupling comes with the coupling."
Y10-03-09