Marine Corps · SSN history

972 Airplane Propeller Specialist (DO)

Appendix B identifies SSN 972 as Airplane Propeller Specialist (DO) in its column for AR 615-26, September 1942 and supplements, and suggests SSN 687 for conversion. This was not an automatic replacement: each affected Marine’s qualification record had to be reviewed against the job requirements.

Codes named in this history

Codes without a directory match

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

Documented history

Airplane Propeller Specialist (DO)

June 1945 is the manual’s publication date. No effective date is given for the suggested conversion from SSN 972.

  • The June 1945 Present Title entry is blank; the earlier title is not shown as a current specialty title for that edition.
  • The entry does not establish that any particular Marine was reclassified to SSN 687.
Source extraction notes

Predecessor title from the AR 615-26 column: Airplane Propeller Specialist (DO). Suggested conversions/remarks: 687. 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.