Repairing damaged front brake

[Raskwold]

Hello I managed to fall off last night. So now I have some damage to try and sort out, my front brake is no longer working. The lever moves but there is no pressure. When I first looked at it the part where the hydraulic line connects to the brake lever was lose I put a spanner on it and tried tightening it with the result that now I can squeeze brake fluid past the hexagonal nut and the part doesn't twist.
Can somebody tell me the correct terminology what I need to get and where toget it, there is also some damage to the flexible part of the bake line where it joins the metal at the brake lever end although nothing is coming out there. Finally the indicator lens is broken anywhere in particular I should try to get that, do I need to get an offical part or can I just get round lens of same size.

P.S. how much should things cost
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[fatpies]

Its a banjo bolt. (The round bit is the union part)

You'll need some copper crush washers. Then you'll need to bleed the system. If you get pressure back then you've had a lucky escape.

TBH this might be an opportunity to change the hoses though you'll need a bolt for the master cylinder and each calliper.

Cheapest test is undo the bolt and put two new crush washers in, but banjo bolts and union bolts aren't expensive anyway.
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"It's easy to attack and destroy an act of creation. It's a lot more difficult to perform one"

[Raskwold]

Thanks Fatpies 2 crush washers and 100 ml of brake fluid and I have a brake again!