The Billet,metal, cataloged under National Stock Number 9640-00-287-2168, 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 10 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9640-00-287-2168 |
| Item Name | Billet,metal |
| FSC / FSG | 9640 / 96 — Iron and Steel Primary and Semifinished Products |
| Status | ACTIVE |
| Length | 12.000 FEET MINIMUM AND 16.000 FEET MAXIMUM FT |
| Heat Treatment | QUENCHED AND TEMPERED |
| Material Document and Classification | DOD-F-24669/1,GRADE 4340 MIL SPEC SINGLE MATERIAL RESPONSE |
| Basic Shape Style | SQUARE |
| Specification/standard Data | 81349-MIL-S-16974 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | 4340 GRADE |
| Cross-Sectional Width Across Flats | 6.000 INCHES NOMINAL IN |
| Minimum Tensile Strength | 105000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Material | STEEL COMP 4340 |
| 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 |
|---|---|
| MIL-S-16974 | 5/9 Secondary reference U.S. Government activity |
| D0D-F-24669/1 | 4/1 Identification reference U.S. Government activity |
NSN 9640-00-287-2168 is a Billet,metal, classified under FSC 9640, Iron and Steel Primary and Semifinished Products. Status: active.
Key specifications for 9640-00-287-2168: Length: 12.000 FEET MINIMUM AND 16.000 FEET MAXIMUM FT; Heat Treatment: QUENCHED AND TEMPERED; Material Document and Classification: DOD-F-24669/1,GRADE 4340 MIL SPEC SINGLE MATERIAL RESPONSE; Basic Shape Style: SQUARE. 10 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.