The Channel,structural, cataloged under National Stock Number 9540-01-299-9503, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-299-9503 |
| Item Name | Channel,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Base Flange Thickness | 0.094 INCHES NOMINAL IN |
| Left Side Flange Height | 1.000 INCHES NOMINAL IN |
| Heat Treatment | T-81 SOLUTION HEAT TREATED |
| First Tip Radius | 0.094 INCHES NOMINAL IN |
| Fillet Radius Where Right Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.094 INCHES NOMINAL IN |
| Second Tip Radius | 0.094 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 1.000 INCHES NOMINAL IN |
| Fillet Radius Where Left Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.094 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | T81 TEMPER |
| Right Inside Angle | 90.0 DEGREES NOMINAL |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Material | ALUMINUM ALLOY 2024 |
| Fabrication Method | EXTRUDED |
| First Tip Style | RIGHT QUARTER RADIUS |
| Second Tip Relationship to First Tip | NOT IDENTICAL |
| Second Tip Style | LEFT QUARTER 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 |
|---|---|
| QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| AND10137-1604 | 4/1 Identification reference U.S. Government activity |
| AMS-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 |
NSN 9540-01-299-9503 is a Channel,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
Key specifications for 9540-01-299-9503: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.094 INCHES NOMINAL IN; Left Side Flange Height: 1.000 INCHES NOMINAL IN; Heat Treatment: T-81 SOLUTION HEAT TREATED. 20 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.