Marine Corps · SSN history

516 Filter Board Instructor

Appendix B lists SSN 516 as “Filter Board Instructor” under AR 615-26 of September 1942 and its supplements, and suggests SSN 515 as a possible replacement. This was not an automatic conversion: each affected Marine’s qualifications had to be reviewed against the job specifications.

Codes named in this history

Codes without a directory match

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

Documented history

Filter Board Instructor

June 1945 is the manual’s publication date. No effective date for the suggested change from SSN 516 is given.

  • No title is listed for SSN 516 in either the June 1944 tentative-title column or the June 1945 Present Title column.
  • The entry does not establish a fixed replacement or show that an individual Marine was reclassified to SSN 515.
Source extraction notes

Predecessor title from the AR 615-26 column: Filter Board Instructor. Suggested conversions/remarks: 515. 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.