FBA12G24L1A is a 24 Vdc fan from NMB Technologies Corporation that has gone obsolete. 381-2955-ND from ebm-papst Inc. has been offered as a possible substitute.
To verify this part will work in your application or to view full specifications see the manufacturer datasheet. https://media.digikey.com/pdf/Data%20Sheets/ebm-papst%20Industries%20PDFs/4414ML.pdf