Marine Corps · SSN history

510 Information Center Operator

Appendix B lists SSN 510 as “Information Center Operator” under AR 615-26 (September 1942 and supplements), and as “Plotter, Air Warning” in both June 1944 and June 1945. The marked instruction “See also 515” applies to the earlier Information Center Operator title, not an automatic conversion to SSN 515.

Documented history

Information Center Operator

June 1945 is the manual’s publication date. No effective date for a classification change is given.

  • The cross-reference does not establish a cancellation, formal rename, or fixed replacement.
  • Any suggested reassignment required review of the individual’s qualifications against the job specifications.
Source extraction notes

Predecessor title from the AR 615-26 column: Information Center Operator. Suggested conversions/remarks, as printed: *See also 515. Asterisks bind the suggestions to the correspondingly marked earlier title, not to an unmarked present-title meaning. The Present Title column is the manual's June 1945 meaning: Plotter, Air Warning. 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.