Air Force · AFSC history

531X0 Machinist

Converted to 427X0, dated April 1, 1977 by the source.

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Codes named in this history

Codes without a directory match

427X0 stated by the source. No directory or archive record matches.

Documented history

Machinist

The surrounding paragraph explicitly describes Machinists; month precision preserved. Verified source wording: “In April 1977, the AFSC was changed from 531X0 to its present AFSC, 427X0.”

Source documents (1)

Machinist Specialty AFSCs 42730, 42750, 42770, and 42799.
1. Internet Archive full-text OCR around char offset 8,025; governing lineage context verified · source dated August 1, 1979
Archive reader page 8 (opens in a new tab)

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