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Marine Corps · SSN history

602 Heavy Artillery NCO

The June 1945 manual suggests SSN 845 for Marines classified as SSN 602, Heavy Artillery NCO, under the June 1944 tentative manual. This was not an automatic conversion: each Marine’s Qualification Card had to be reviewed against the job specifications before reclassification.

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Codes named in this history

Codes without a directory match

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

Documented history

Heavy Artillery NCO

June 1945 is the manual’s publication date; the entry gives no effective date for reclassification.

  • The suggestions 601, 603, 845 and 864 marked with a single asterisk apply to the separate earlier title Gun Commander; only the double-asterisk suggestion 845 applies to Heavy Artillery NCO.
  • The June 1945 Present Title column is blank for SSN 602; the entry does not establish a completed conversion for any individual Marine.
Source extraction notes

Predecessor title from the June 1944 tentative-manual column: Heavy Artillery NCO. Suggested conversions/remarks, as printed: *601, *603, *845, *864, **845. The double-asterisk suggestions apply to Heavy Artillery NCO; the single-asterisk suggestions apply to the separate AR 615-26 title Gun Commander. Only the double-asterisk alternatives are assigned to this event. These are suggested reclassifications subject to individual Qualification Card and job-specification review, not automatic or present-day equivalents. 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.