Given the multitude of answers you are getting to fix the leaking problem, no doubt it can be. Keep in mind, what might look ok by one's standards may not be ok by another's. You decide what you want to do with the advice given based on your standards and skills.
Myself, before jamming that new and different style of burst disk into that hole and possibly making a different perminant groove in the aluminum (because the parts are obviously of different angles and sealing surfaces), I'd try fixing the issue of what started making it leak. Correcting the condition of bottom of that hole and also the original burst disk sealing surfaces should fix the issue, providing that the disks themselves aren't what's leaking. Also, it may save a bigger headache by simply buying the original off-the-shelf burst disk set-up instead of installing a generic one (that obviously didn't work).