The Channel,structural, cataloged under National Stock Number 9540-01-126-3798, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 23 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 9540-01-126-3798 |
| 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 | 0.050 INCHES NOMINAL IN |
| Left Side Flange Height | 0.500 INCHES NOMINAL IN |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| First Tip Radius | 0.050 INCHES NOMINAL IN |
| Fillet Radius Where Right Flange Joins Base Flange | 0.094 INCHES NOMINAL IN |
| Material Document and Classification | AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE |
| Left Side Flange Thickness | 0.050 INCHES NOMINAL IN |
| Second Tip Radius | 0.050 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 0.500 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.102 POUNDS PER LINEAR FOOT LBS |
| Specification/standard Data | 81755-K20 MANUFACTURERS STANDARD |
| Fillet Radius Where Left Flange Joins Base Flange | 0.094 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.050 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | T3511 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 |
|---|---|
| AMS-QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| QQA200-3 | 5/9 Secondary reference U.S. Government activity |
| K20A2T3511 | 5/1 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/3 | 5/1 Secondary reference Sae International Dba Sae International |
| 9540PL0863416 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| AND10137-0602 | 5/1 Secondary reference U.S. Government activity |
| QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| MS14366E007 | 2/2 Government specification standardization U.S. Government activity |
NSN 9540-01-126-3798 is a Channel,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 9540-01-177-9845. Verify interchangeability with system specifications before substitution.
Key specifications for 9540-01-126-3798: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.050 INCHES NOMINAL IN; Left Side Flange Height: 0.500 INCHES NOMINAL IN; Heat Treatment: T-3511 SOLUTION HEAT TREATED. 23 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.