The Iron Pig, cataloged under National Stock Number 9640-00-267-4174, is classified within Federal Supply Class 9640 (Iron and Steel Primary and Semifinished Products) of the Ores, Minerals, and Primary Products group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9640-00-267-4174 |
| Item Name | Iron Pig |
| FSC / FSG | 9640 / 96 — Iron and Steel Primary and Semifinished Products |
| Status | ACTIVE |
| Composition and Percentage | 96.50 MINIMUM BY VOLUME IRON AND 0.76 MINIMUM BY VOLUME MANGANESE AND 1.00 MAXIMUM BY VOLUME MANGANESE AND 0.50 MINIMUM BY VOLUME PHOSPHORUS AND 0.70 MAXIMUM BY VOLUME PHOSPHORUS |
| Specification/standard Data | 81346-ASTM A43 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION |
| Impurities Limitation in Percent | SILICON 1.75 MAX AND SULPHUR 0.05 MAX |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| ASTM A43 | 3/1 Design control — primary reference U.S. Government activity |
NSN 9640-00-267-4174 is a Iron Pig, classified under FSC 9640, Iron and Steel Primary and Semifinished Products. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 9640-00-267-4175. Verify interchangeability with system specifications before substitution.
Key specifications for 9640-00-267-4174: Weight: 30.0 POUNDS MINIMUM AND 50.0 POUNDS MAXIMUM LBS; Composition and Percentage: 96.50 MINIMUM BY VOLUME IRON AND 0.76 MINIMUM BY VOLUME MANGANESE AND 1.00 MAXIMUM BY VOLUME MANGANESE AND 0.50 MINIMUM BY VOLUME PHOSPHORUS AND 0.70 MAXIMUM BY VOLUME PHOSPHORUS; Specification/standard Data: 81346-ASTM A43 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Special Features: GRADE FM9. 3 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.