Marine Corps · SSN history

964 Airplane Supercharger Specialist (DO)

Appendix B lists SSN 964 as Airplane Supercharger Specialist (DO) under AR 615-26, September 1942 and supplements, and suggests SSN 956 as a possible replacement. This was not an automatic conversion: each affected Marine’s Qualification Card had to be reviewed against the job specifications before selecting the appropriate specialty.

Codes named in this history

Codes without a directory match

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

Documented history

Airplane Supercharger Specialist (DO)

June 1945 is the manual’s publication date. No effective date for a change from SSN 964 is stated.

  • The June 1945 Present Title column is blank; the entry does not establish a fixed replacement or a specific cancellation or rename.
Source extraction notes

Predecessor title from the AR 615-26 column: Airplane Supercharger Specialist (DO). Suggested conversions/remarks: 956. 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.