Marine Corps · SSN history

163 Steamfitter

Appendix B identifies SSN 163 as Steamfitter in the September 1942 Army regulation and supplements and the June 1944 tentative manual, and suggests SSN 164 as a possible replacement. That suggestion required individual qualification review against the job specifications, not automatic conversion.

Codes named in this history

Codes without a directory match

  • 164 stated by the source. No directory or archive record matches.

Documented history

Steamfitter

June 1945 is the manual’s publication date; no effective date is given for the suggested change from SSN 163.

  • The June 1945 Present Title entry is blank, so the record does not establish a same-code rename or a fixed successor.
Source extraction notes

Predecessor title from the June 1944 tentative-manual column: Steamfitter. Suggested conversions/remarks: 164. 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.