The Beam,structural, cataloged under National Stock Number 9540-00-556-9180, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 25 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-00-556-9180 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| First Tip Inner Radius | 0.031 INCHES NOMINAL IN |
| Right Side Bottom Flange Thickness | 0.063 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Web Flange Thickness | 0.063 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Outer Radius Where Bottom Right Flange Joins Web Flange | 0.031 INCHES NOMINAL IN |
| Heat Treatment | T-6 SOLUTION HEAT TREATED |
| Material Document and Classification | AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Right Bottom Inside Angle | 90.0 DEGREES NOMINAL |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.094 INCHES NOMINAL IN |
| Second Tip Radius | 0.031 INCHES NOMINAL IN |
| Basic Shape Style | Z SHAPE |
| Weight Per Unit Measure | 0.240 POUNDS PER LINEAR FOOT LBS |
| Outer Radius Where Top Left Flange Joins Web Flange | 0.031 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | T6 TEMPER |
| Bottom Flange Width | 0.800 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Right Flange Joins Web Flange/leg | 0.094 INCHES NOMINAL IN |
| Top Flange Width | 0.630 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 7075 |
| Fabrication Method | EXTRUDED |
| First Tip Outer Radius | 0.031 INCHES NOMINAL IN |
| First Tip Style | SQUARE W/ INNER AND OUTER CORNER RADII |
| Left Side Top Flange Thickness | 0.093 INCHES NOMINAL IN |
| Second Tip Relationship to First Tip | NOT IDENTICAL |
| Second Tip Style | FULL RADIUS |
| 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 |
|---|---|
| PA13140 | 5/9 Secondary reference Transtar Metals Corp |
| AMS-QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
| QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
| LS6709 | 5/1 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 9540-00-556-9180 is a Beam,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
Key specifications for 9540-00-556-9180: First Tip Inner Radius: 0.031 INCHES NOMINAL IN; Overall Height: 1.500 INCHES NOMINAL IN; Right Side Bottom Flange Thickness: 0.063 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT. 25 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.