The Beam,structural, cataloged under National Stock Number 9540-01-124-3755, 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29 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-124-3755 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| Right Side Top Flange Thickness | 0.125 INCHES NOMINAL IN |
| Right Side Bottom Flange Thickness | 0.125 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 | 0.300 INCHES NOMINAL IN |
| Web Flange Thickness | 0.125 INCHES NOMINAL IN |
| Fourth Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Left Side Bottom Flange Thickness | 0.125 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Heat Treatment | O-ANNEALED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Material Document and Classification | AMS-QQ-A-200/3 FED SPEC SINGLE 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 | 0.476 POUNDS PER LINEAR FOOT LBS |
| Specification/standard Data | 81755-K30 MANUFACTURERS STANDARD |
| Nondefinitive Spec/std Data | 0 TEMPER |
| Bottom Flange Width | 1.425 INCHES NOMINAL IN |
| Right Side Bottom Flange Distance to Center of Both Flanges | 0.7125 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Right Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Top Flange Width | 0.600 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Material | ALUMINUM ALLOY 2024 |
| Fabrication Method | EXTRUDED |
| Left Side Bottom Flange Distance to Center of Both Flanges | 0.7125 INCHES NOMINAL IN |
| First Tip Style | SQUARE END |
| 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 |
|---|---|
| 9540PL1390242 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 60-14275 | 5/1 Secondary reference Transtar Metals Corp |
| 9540PL0840083 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| MS14384E001 | 2/2 Government specification standardization U.S. Government activity |
| K30A580 | 5/1 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/3 | 5/1 Secondary reference Sae International Dba Sae International |
| 9540PL1727565 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 9540-01-124-3755 is a Beam,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
Key specifications for 9540-01-124-3755: Overall Height: 1.300 INCHES NOMINAL IN; Right Side Top Flange Thickness: 0.125 INCHES NOMINAL IN; Right Side Bottom Flange Thickness: 0.125 INCHES NOMINAL IN; Fillet Radius Where Bottom Left Flange Joins Web Flange/leg: 0.125 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.