The Channel,structural, cataloged under National Stock Number 9540-01-495-8571, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-495-8571 |
| Primary Part Number | 1MA120D05-10281 |
| Item Name | Channel,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Manufacturer | The Boeing Company Div Defense |
| 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 | 0.180 INCHES NOMINAL IN |
| Heat Treatment | T-73511 SOLUTION HEAT TREATED |
| Left Side Flange Thickness | 0.050 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 0.485 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.270 POUNDS PER LINEAR FOOT LBS |
| Right Side Flange Thickness | 0.050 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 7075 ALLOY AND T73511 TEMPER |
| Right Inside Angle | 90.0 DEGREES NOMINAL |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Material | ALUMINUM ALLOY 7075 |
| Fabrication Method | EXTRUDED |
| First Tip Style | SQUARE END |
| Second Tip Relationship to First Tip | IDENTICAL |
| Second Tip Style | SQUARE END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 74A800015-2033 | The Boeing Company Div Defense (USA) |
| 1MA120D05-10281 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| AMS-QQ-A-200/11 | 3/1 Design control — primary reference Sae International Dba Sae International |
| QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
NSN 9540-01-495-8571 is a Channel,structural, manufactured by The Boeing Company Div Defense, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
NSN 9540-01-495-8571 has 2 manufacturer part numbers on file: 74A800015-2033 (The Boeing Company Div Defense), 1MA120D05-10281 (The Boeing Company Div Defense).
Key specifications for 1MA120D05-10281: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.050 INCHES NOMINAL IN; Left Side Flange Height: 0.180 INCHES NOMINAL IN; Heat Treatment: T-73511 SOLUTION HEAT TREATED. 17 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.