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Army · SSN history

0607 Light Mortar Crewman

The Army rescinded SSN 0607, Light Mortar Crewman, and split its listed positions among three MOS codes. Section-leader positions became 2745, ammunition-bearer and messenger positions became 4745, and mortar, instrument, and other heavy-weapons positions became 4812.

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Codes named in this history

Other history records

These source identifiers have archive pages. Their availability does not establish current service use or retirement.

Codes without a directory match

  • 4745 stated by the source. No directory or archive record matches.
  • 4812 stated by the source. No directory or archive record matches.

Documented history

Light Mortar Crewman

The position conversions took effect on 29 April 1949: paragraph 8a made them effective on the regulation's date, rather than setting a later completion deadline.

  • These position-specific changes do not establish which successor MOS an individual soldier received.
Source extraction notes

Paragraph 5 rescinds this SSN. Appendix section-leader positions convert to 2745; ammunition-bearer/messenger positions to 4745; mortar, instrument, and other heavy-weapons positions to 4812. Repeated position-level change-sheet rows are collapsed into this one canonical predecessor event, preserving first-source successor order. The predecessor remains in the SSN namespace; successors are numeric MOS codes.

Source documents (4)

Reviewed September 23, 2026 against references 1, 2, 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.