Right Dave
Yes, your part number is what I have. I used the barb end on 5mm ID pole hose. I also used it on 6mm ID hose & was fine but not as tight a fit (obviously)
For your info- 8mm refers to the tube & 6mm to the barb size.
You just need to work out which size of which you require.
Also, my van side door was frozen solid so had to clamber over loads of crap, banged my head & slipped on the ice, so please remember me if your numbers come up!