The Channel,structural, cataloged under National Stock Number 9540-00-488-3990, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 9540-00-488-3990 |
| Item Name | Channel,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| First Tip Inner Radius | 0.031 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Base Flange Thickness | 0.219 INCHES NOMINAL IN |
| Left Side Flange Height | 3.000 INCHES NOMINAL IN |
| Heat Treatment | T-73511 SOLUTION HEAT TREATED AND STRESS RELIEVED BY STRETCHING |
| Fillet Radius Where Right Flange Joins Base Flange | 0.188 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 3.000 INCHES NOMINAL IN |
| Weight Per Unit Measure | 1.670 POUNDS PER LINEAR FOOT LBS |
| Fillet Radius Where Left Flange Joins Base Flange | 0.188 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.188 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | T73511 TEMPER |
| Right Inside Angle | 90.0 DEGREES NOMINAL |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Outer Radius Where Left Flange Joins Base Flange | 0.031 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY |
| Fabrication Method | EXTRUDED |
| First Tip Outer Radius | 0.031 INCHES NOMINAL IN |
| First Tip Style | SQUARE W/ INNER AND OUTER CORNER RADII |
| Second Tip Relationship to First Tip | IDENTICAL |
| Outer Radius Where Right Flange Joins Base Flange | 0.031 INCHES NOMINAL IN |
| 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 |
|---|---|
| 51778 | 3/1 Design control — primary reference Aluminum Co of America |
| AMS-QQA200-11 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AMS-QQA200-11 | 5/9 Secondary reference U.S. Government activity |
| QQA200-11 | 5/9 Secondary reference U.S. Government activity |
| 2E113 | 3/1 Design control — primary reference The Boeing Company Div Legacy Am&m |
NSN 9540-00-488-3990 is a Channel,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
Key specifications for 9540-00-488-3990: First Tip Inner Radius: 0.031 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.219 INCHES NOMINAL IN; Left Side Flange Height: 3.000 INCHES NOMINAL IN. 22 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.