Marine Corps · SSN history

101 Engine Lathe Operator

Appendix B identifies SSN 101 as Engine Lathe Operator under AR 615-26 of September 1942 and its supplements, and lists SSN 302 as a suggested conversion. This was not an automatic conversion: each affected Marine’s Qualification Card had to be reviewed against the manual’s job specifications before reassignment.

Codes named in this history

Codes without a directory match

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

Documented history

Engine Lathe Operator

June 1945 is the manual’s publication date; no effective date is given for the suggested conversion.

  • No title is listed for SSN 101 in either the June 1944 tentative-title column or the June 1945 Present Title column.
  • The entry does not establish that any individual Marine actually converted to SSN 302.
Source extraction notes

Predecessor title from the AR 615-26 column: Engine Lathe Operator. Suggested conversions/remarks: 302. 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.