mos.directory

Marine Corps · SSN history

901 Munitions Worker, Aviation

Appendix B lists SSN 901 as “Munitions Worker, Aviation” under AR 615-26, September 1942 and supplements, and as “Munitions Worker” in the June 1945 Present Title column. The starred instruction “See also 911” applies to the earlier aviation title and is a cross-reference, not an automatic conversion to 911.

Search legacy codes Browse Marine Corps specialties

Documented history

Munitions Worker, Aviation

June 1945 is the manual’s publication date; no effective date for a change to SSN 901 is stated.

  • The entry 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: Munitions Worker, Aviation. Suggested conversions/remarks, as printed: *See also 911. 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: Munitions Worker. 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.