These brackets like above are not typically service parts; they were not reproduced other than as part of a complete carburetor.
Did you lose it or do you have one that's broken?
Maybe the Jeep came to you without it?
To replace it exactly, likely you'll need to find a complete junk carburetor that you can take it from.
Or you could fabricate a replacement.
Would help if you post pictures of what you have and where the part is missing.