The Beam,structural, cataloged under National Stock Number 9540-00-288-0454, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-00-288-0454 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| Third Tip Radius | 0.062 INCHES NOMINAL IN |
| Right Side Top Flange Thickness | 0.078 INCHES NOMINAL IN |
| Right Side Bottom Flange Thickness | 0.078 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Left Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Left Bottom Inside Angle | 90.0 DEGREES NOMINAL |
| Left Side Top Flange Distance to Center of Both Flanges | 0.875 INCHES NOMINAL IN |
| Web Flange Thickness | 0.078 INCHES NOMINAL IN |
| Fourth Tip Relationship to Preceding Tips | IDENTICAL W/THIRD TIP |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Third Tip Style | UPPER BULBOUS |
| Left Side Bottom Flange Thickness | 0.078 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| First Tip Radius | 0.062 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE |
| Right Bottom Inside Angle | 90.0 DEGREES NOMINAL |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Basic Shape Style | I SHAPE |
| Weight Per Unit Measure | 0.755 POUNDS PER LINEAR FOOT LBS |
| Nondefinitive Spec/std Data | T3511 TEMPER |
| Third Tip Diameter | 0.188 INCHES NOMINAL IN |
| Bottom Flange Width | 1.750 INCHES NOMINAL IN |
| Right Side Bottom Flange Distance to Center of Both Flanges | 0.875 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Right Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Top Flange Width | 1.750 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | NOT IDENTICAL |
| Material | ALUMINUM ALLOY 2024 |
| 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 |
|---|---|
| AMS-QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/3 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 29003 | 3/1 Design control — primary reference Aluminum Co of America |
| 26097 | 3/1 Design control — primary reference Alcoa/reynolds Metals Company |
| 60-5711 | 3/1 Design control — primary reference Transtar Metals Corp |
| PA11015 | 5/9 Secondary reference Transtar Metals Corp |
NSN 9540-00-288-0454 is a Beam,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
11 possible matches (shared part number, not a government interchangeability claim): 4710-00-396-4378, 2540-00-586-3239, 5310-00-741-2579. Verify interchangeability with system specifications before substitution.
Key specifications for 9540-00-288-0454: Third Tip Radius: 0.062 INCHES NOMINAL IN; Overall Height: 3.750 INCHES NOMINAL IN; Right Side Top Flange Thickness: 0.078 INCHES NOMINAL IN; Right Side Bottom Flange Thickness: 0.078 INCHES NOMINAL IN. 29 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.