Marine Corps · SSN history

478 Ship Fitter

SSN 478, listed as Ship Fitter in AR 615-26 (September 1942 and supplements), was deleted for Marine Corps use. The June 1945 manual marks it “None,” meaning no Marine Corps specialty, and specifies no successor.

Documented history

Ship Fitter

June 1945 is the manual’s publication date, not an effective deletion date. The entry gives no effective date for the deletion.

  • Any replacement classification required individual qualification review against the manual’s job specifications, not an automatic conversion.
Source extraction notes

Predecessor title from the AR 615-26 column: Ship Fitter. Suggested conversions/remarks: None. The table gives no row-level effective date. June 1945 is the manual publication date, not an effective conversion date.

Source documents (1)

Reviewed September 24, 2026 against references 3 and 4.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.