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Marine Corps · MOS history

6135 Title not stated in source

Marines holding primary MOS 6135, in grades corporal through gunnery sergeant, were to receive MOS 6023 as an additional skill designation. This assignment came before a separate primary-MOS conversion and did not itself replace MOS 6135. For corporals through gunnery sergeants, MARADMIN 474/00 directed replacement of primary MOS 6135 with primary MOS 6122, 6123, or 6124. The occupational field manager's by-name roster determined which replacement applied.

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Codes named in this history

Listed in today's directory

These codes have directory pages; their current use has not been reviewed, so no current claim is made here.

Codes without a directory match

  • 6023 stated by the source. No directory or archive record matches.
  • 6122 stated by the source. No directory or archive record matches.

Documented history

Title not stated in source

30 September 2000 was the completion deadline for the conversion program, not a stated effective date for adding MOS 6023.

  • The record does not state an occupational title or describe duties for MOS 6135.
Source extraction notes

The cited source prints the MOS code but not its occupational title; no title was inferred. PMOS 6135 holders are assigned skill-designator MOS 6023 before the separate PMOS conversion. This assertion does not replace the original PMOS. The assignment was directed under the same no-later-than 30 September 2000 conversion deadline as the table.

Source documents (1)

Reviewed September 23, 2026 against references 2 and 3.

Title not stated in source

September 30, 2000 was the completion deadline for active, reserve, and retired components, not a stated effective date for each conversion.

  • Without the by-name roster, the record does not establish which successor applied to an individual Marine.
  • The source does not state MOS 6135's occupational title or duties.
Source extraction notes

The cited source prints the MOS code but not its occupational title; no title was inferred. Conditional PMOS conversion by name roster submitted by the occupational-field manager; preserve as one ordered successor set. 2000-09-30 is a no-later-than deadline.

Source documents (1)

Reviewed September 23, 2026 against references 2 and 3.

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