Army · SSN history

0605 Heavy Machine Gunner

SSN 0605 (Heavy Machine Gunner) was restricted in Infantry use, not canceled Army-wide. The replacement MOS depended on duty and grade: 1745 or 2745 for light-weapons leaders, 4745 for light-weapons infantrymen, 1812 or 2812 for heavy-weapons leaders, and 4812 for heavy-weapons infantrymen.

Codes named in this history

Historical steps

The source names a code the branch later retired, or whose reviewed record is historical. Its story continues on that code's own page.

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

Heavy Machine Gunner

The appendix's unit-position conversions took effect on 29 April 1949, the regulation's date.

  • The available details do not specify which grades distinguished the paired leader codes.
Source extraction notes

Paragraph 6 restricts this SSN in Infantry use but does not rescind it Army-wide. Paragraph 6 makes the destination duty/grade-dependent: 1745/2745 for light-weapons leaders, 4745 for light-weapons infantrymen, 1812/2812 for heavy-weapons leaders, and 4812 for heavy-weapons infantrymen. 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 (6)

Reviewed September 23, 2026 against references 1, 2, 3, 4, 5 and 6.

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