Marine Corps · MOS history

6053 Title not stated in source

MARADMIN 474/00 directed Marines in grades private through gunnery sergeant with primary MOS 6053 to have it replaced by primary MOS 6253. This applied to active-duty Marines, Reserve Marines in the SMCR, IRR, IMA and Standby Reserve, and retired Marines.

Codes named in this history

Codes without a directory match

  • 6253 stated by the source. No directory or archive record matches.

Documented history

Title not stated in source

September 30, 2000 was the deadline for completing the conversions, not an exact effective date. The directive was published September 25, 2000; it does not specify the exact conversion date.

  • The directive does not state an occupational title or describe duties for MOS 6053.
Source extraction notes

The cited source prints the MOS code but not its occupational title; no title was inferred. PMOS conversion for grades PVT-GYSGT; 2000-09-30 is the stated no-later-than conversion deadline, not an exact event date. Paragraph 1 covers active, Reserve (SMCR, IRR, IMA and Standby Reserve) and retired Marines, using separate headquarters unit-diary entries under the same no-later-than deadline.

Source documents (1)

Reviewed September 24, 2026 against references 1 and 3.

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