The Beam,structural, cataloged under National Stock Number 9540-00-250-3603, 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29 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-00-250-3603 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| Right Top Inner Face to Outer Face Angle | 90.0 DEGREES NOMINAL |
| Third Tip Radius | 0.100 INCHES NOMINAL IN |
| Right Side Top Flange Thickness | 0.350 INCHES NOMINAL IN |
| Right Side Bottom Flange Thickness | 0.350 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Left Flange Joins Web Flange/leg | 0.170 INCHES NOMINAL IN |
| Length | 20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT |
| Left Side Top Flange Distance to Center of Both Flanges | 1.254 INCHES NOMINAL IN |
| Web Flange Thickness | 0.349 INCHES NOMINAL IN |
| Fourth Tip Relationship to Preceding Tips | IDENTICAL W/THIRD TIP |
| Third Tip Style | UPPER RADIUS |
| Right Side Top Flange Tip Thickness | 0.170 INCHES NOMINAL IN |
| Left Side Bottom Flange Thickness | 0.350 INCHES NOMINAL IN |
| Heat Treatment | T-6 SOLUTION HEAT TREATED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.170 INCHES NOMINAL IN |
| First Tip Radius | 0.100 INCHES NOMINAL IN |
| Material Document and Classification | AMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.170 INCHES NOMINAL IN |
| Right Side Bottom Flange Tip Thickness | 0.170 INCHES NOMINAL IN |
| Basic Shape Style | I SHAPE |
| Weight Per Unit Measure | 2.590 POUNDS PER LINEAR FOOT LBS |
| Nondefinitive Spec/std Data | T6 TEMPER |
| Bottom Flange Width | 2.509 INCHES NOMINAL IN |
| Left Side Bottom Flange Tip Thickness | 0.170 INCHES NOMINAL IN |
| Left Top Inner Face to Outer Face Angle | 90.0 DEGREES NOMINAL |
| Right Side Bottom Flange Distance to Center of Both Flanges | 1.255 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Right Flange Joins Web Flange/leg | 0.170 INCHES NOMINAL IN |
| Top Flange Width | 2.509 INCHES NOMINAL IN |
| Left Side Top Flange Tip Thickness | 0.170 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | NOT IDENTICAL |
| 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-200/8 | 5/9 Secondary reference U.S. Government activity |
| SAE-AMS-QQ-A-200/8 | 3/1 Design control — primary reference Sae International Dba Sae International |
| QQA200-8 | 5/9 Secondary reference U.S. Government activity |
| 851D | 3/1 Design control — primary reference Aluminum Co of America |
| AMS-QQ-A-200/8 | 5/9 Secondary reference Sae International Dba Sae International |
NSN 9540-00-250-3603 is a Beam,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 9540-00-542-2747. Verify interchangeability with system specifications before substitution.
Key specifications for 9540-00-250-3603: Right Top Inner Face to Outer Face Angle: 90.0 DEGREES NOMINAL; Third Tip Radius: 0.100 INCHES NOMINAL IN; Overall Height: 3.000 INCHES NOMINAL IN; Right Side Top Flange Thickness: 0.350 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.