Dear Mr. Puchosic,
Thank you for posting your request on History Hub!
His enlistment records should be part of his Official Military Personnel File (OMPF). OMPFs and medical records of enlisted men of the U.S. Navy who were separated from the service prior to 1955 are located at NARA's National Personnel Records Center (NPRC), (Military Personnel Records), 1 Archives Drive, St. Louis, MO 63138-1002. To request these records, please mail a completed GSA Standard Form 180 to NPRC.
We hope this is helpful. Best of luck with your family research!