Seek advise to check if there any pin to pin alternate for LM139J/883 ?

Ooi

Thanks for posting your question.  I was looking here for all the alternatives on this page.  Is the problem that we do not have stock of this part?  Just to clarify, it appears that the new version of the part you mentioned is actually LM139AJ/883 but this part appears to be out of stock.  I just wanted to make sure you weren't just looking for the non-A version.

All of our MIL grade devices can be found on this page.  Hopefully one of them will meet your needs and timeframe for availability.

Chuck

https://www.ti.com/applications/industrial/aerospace-defense/products.html?keyMatch=MILITARY