Marine Corps · SSN history

963 Airplane Propeller Blade Straightener

Appendix B identifies SSN 963 as Airplane Propeller Blade Straightener under AR 615-26 of September 1942 and its supplements, with SSN 687 suggested as a replacement. That suggestion required review of the individual's qualifications against the job specifications, not automatic conversion.

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 Blade Straightener

June 1945 is the manual's publication month, not an effective conversion date. No effective date is given for this entry.

  • The June 1945 Present Title column is blank, and the entry does not specify whether SSN 963 was deleted or fundamentally changed.
Source extraction notes

Predecessor title from the AR 615-26 column: Airplane Propeller Blade Straightener. 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.