Marine Corps · SSN history

581 Signal Supply Man

Appendix B lists Marine Corps SSN 581 as Signal Supply Man in the June 1944 tentative manual and Signal Stock Man in the June 1945 manual, with the instruction “See also 580.” That cross-reference does not establish a cancellation, a formal rename, or an automatic replacement by SSN 580.

Documented history

Signal Supply Man

June 1945 is the manual’s publication month, not an established conversion date; no effective date is given for SSN 581.

  • Any suggested reassignment required review of the individual’s qualifications against the job specifications.
Source extraction notes

Predecessor title from the June 1944 tentative-manual column: Signal Supply Man. Suggested conversions/remarks, as printed: See also 580. The Present Title column is the manual's June 1945 meaning: Signal Stock Man. It is not a present-day MOS equivalence. This is a cross-reference or instruction to review the job specification, not an explicit fixed replacement or proof of cancellation. The table gives no row-level calendar effective date. June 1945 is the manual publication date, not an inferred individual 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.