Fire Control Instrument Operator
June 1945 is the manual’s publication date. No effective date is given for these suggested reclassifications.
- The alternatives do not establish an automatic split or a fixed successor; retaining the number 645 does not establish automatic continuity.
Source extraction notes
Predecessor title from the AR 615-26 column: Fire Control Instrument Operator. Suggested conversions/remarks, as printed: *594, *596, *645. Asterisks bind the suggestions to the correspondingly marked earlier title, not to an unmarked present-title meaning. The Present Title column is the manual's June 1945 meaning: Field Artillery Fire Control Man. It is not a present-day MOS equivalence. These are suggested reclassifications subject to individual Qualification Card and job-specification review, not automatic or present-day equivalents. The table gives no row-level calendar effective date. June 1945 is the manual publication date, not an inferred individual conversion date.
Source documents (1)
Reviewed September 24, 2026 against references 3 and 4.
- Manual of Military Occupational Specialties, NAVMC 1008-PD, June 1945, Appendix B
1. Appendix B, printed p. 245 / PDF image p. 251, SSN 645
PDF page 251 (opens in a new tab)2.Manual of Military Occupational Specialties, NAVMC 1008-PD, June 1945, Appendix B · event transcription · docs/legacy-data/usmc-wartime-ssn.jsonl:295; Appendix B, printed p. 245 / PDF image p. 251, SSN 645
PDF page 251 (opens in a new tab)3.NAVMC 1008-PD: Appendix B primary row 645 · Printed p. 245 / PDF p. 251, SSN 645; five-column primary image transcription · cited by the explanation
PDF page 251 (opens in a new tab)4.NAVMC 1008-PD: governing rules for deleted and changed SSNs · Chapter I section 13(2), printed p. 9 / PDF p. 15, and Appendix B heading, printed p. 236 / PDF p. 242 · cited by the explanation
PDF page 15 (opens in a new tab)PDF page 242 (opens in a new tab)