No way to pull the broken part of the key out of the lock? Once you have the parts, any locksmith can make a key. It's not chipped. If you search this forum, you'll be able to dig up the part number for a replacement key. The locksmith will have to shave the corners off the tab so that it will fit in the lock well.
Here, I did the research for you. It's an ilco X241 and heres the shape you need to shave it into.
Key Blank threads merged | Page 3 | StromTrooper
Here, I did the research for you. It's an ilco X241 and heres the shape you need to shave it into.
Key Blank threads merged | Page 3 | StromTrooper