Army · SSN history

406 Title not stated in source

Appendix I lists Army SSN 406 as deleted and recommends SSNs 275 and 290 as substitutes. These are suggested alternatives, not a documented merger or an automatic conversion to both codes.

Codes named in this history

Codes without a directory match

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

Documented history

Title not stated in source

June 30, 1945 is the publication date of Change 2, not an effective deletion date for SSN 406. The deletion date is not stated.

  • The table does not identify the specialty title for SSN 406.
  • No conditions are stated for choosing between SSNs 275 and 290.
Source extraction notes

Appendix I lists deleted SSN 406 with suggested substitutes 275, 290. The table does not print the deleted specialty title, so the neutral title placeholder is used. The row-level deletion date is unstated. The citation dates Change 2 to 30 June 1945; that publication date is not an effective deletion date.

Source documents (1)

Reviewed September 23, 2026 against references 1 and 2.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.