The Channel,structural, cataloged under National Stock Number 9540-01-221-4311, 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29 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-221-4311 |
| Item Name | Channel,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| First Tip Inner Radius | 0.031 INCHES NOMINAL IN |
| Right Side Bottom Flange Thickness | 0.250 INCHES NOMINAL IN |
| Distance Between Flanges | 0.430 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Base Flange Thickness | 0.250 INCHES NOMINAL IN |
| Fourth Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Right Side Distance to Center of Both Flanges | 1.660 INCHES NOMINAL IN |
| Left Side Flange Height | 1.500 INCHES NOMINAL IN |
| Left Side Bottom Flange Thickness | 0.250 INCHES NOMINAL IN |
| Heat Treatment | T-6 SOLUTION HEAT TREATED |
| Fillet Radius Where Right Flange Joins Base Flange | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Left Side Flange Thickness | 0.280 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 1.500 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.898 POUNDS PER LINEAR FOOT LBS |
| Specification/standard Data | 81205-BAC1507 MANUFACTURERS STANDARD |
| Fillet Radius Where Left Flange Joins Base Flange | 0.160 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.280 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | T6 TEMPER |
| Right Inside Angle | 90.0 DEGREES NOMINAL |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Outer Radius Where Left Flange Joins Base Flange | 0.160 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Material | ALUMINUM ALLOY 7075 |
| 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 |
| 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-200/11 | 5/9 Secondary reference U.S. Government activity |
| BAC1507-48706 | 3/2 Design control — primary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 9540-01-221-4311 is a Channel,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
Key specifications for 9540-01-221-4311: First Tip Inner Radius: 0.031 INCHES NOMINAL IN; Right Side Bottom Flange Thickness: 0.250 INCHES NOMINAL IN; Distance Between Flanges: 0.430 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT. 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.