It's been a long week and my brain is broken.

I have made a fuel tank with one fuel outlet. the outet has a little flair thing on it to help stop the hose coming off.
What would you call this? It's not forced into shape but machined from solid.

Barb?

Are barbs not sharp and jaggy?
Its not a flair cos it wasn't flaired and its pointier than an olive.

I know I know it just dont at the minute.

that is a barb.

Well there you go. Cheers guys. i'm off to lie down now.

its called a bead in the aircraft industry, here a tool that makes them.

http://www.aircraftspruce.com/catalog/topages/parkerbead.php

I'll call it Brian.