Marine Corps · SSN history

876 Line Construction and Maintenance Instructor

Appendix B lists SSN 876, Line Construction and Maintenance Instructor, under AR 615-26 of September 1942 and its supplements, with SSNs 641 and 646 as suggested alternatives. These were not automatic conversions: each affected Marine’s Qualification Card had to be reviewed against the job specifications before selecting a replacement.

Codes named in this history

Codes without a directory match

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

Documented history

Line Construction and Maintenance Instructor

June 1945 is the manual’s publication date; no effective date for a change to SSN 876 is given.

  • No June 1945 Present Title is listed for SSN 876, and the entry does not establish a fixed split into both suggested specialties.
Source extraction notes

Predecessor title from the AR 615-26 column: Line Construction and Maintenance Instructor. Suggested conversions/remarks: 641, 646. 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.