The Round,metal, cataloged under National Stock Number 9640-00-815-4331, 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10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9640-00-815-4331 |
| Item Name | Round,metal |
| FSC / FSG | 9640 / 96 — Iron and Steel Primary and Semifinished Products |
| Status | ACTIVE |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Heat Treatment | T-4 SOLUTION HEAT TREATED |
| Material Document and Classification | QQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE |
| Basic Shape Style | ROUND |
| Nondefinitive Spec/std Data | T4 TEMPER |
| Minimum Tensile Strength | 62000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 40000 POUNDS PER SQUARE INCH LBS |
| Cross Section Outside Diameter | 6.500 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Fabrication Method | COLD FINISH |
| 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 |
|---|---|
| QQA225-6 | 4/1 Identification reference U.S. Government activity |
NSN 9640-00-815-4331 is a Round,metal, classified under FSC 9640, Iron and Steel Primary and Semifinished Products. Status: active.
Key specifications for 9640-00-815-4331: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Heat Treatment: T-4 SOLUTION HEAT TREATED; Material Document and Classification: QQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE; Basic Shape Style: ROUND. 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.