The Channel,structural, cataloged under National Stock Number 9540-01-367-1991, 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 22 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-367-1991 |
| Primary Part Number | 1MA120-10056 |
| 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 | 0.125 INCHES NOMINAL IN |
| Left Side Flange Height | 1.500 INCHES NOMINAL IN |
| Heat Treatment | T-73511 SOLUTION HEAT TREATED |
| First Tip Radius | 0.125 INCHES NOMINAL IN |
| Fillet Radius Where Right Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Material Document and Classification | AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Left Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| Second Tip Radius | 0.125 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 1.500 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.563 POUNDS PER LINEAR FOOT LBS |
| Fillet Radius Where Left Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.125 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 W/ RIGHT RADIUS |
| Second Tip Relationship to First Tip | NOT IDENTICAL |
| Second Tip Style | SQUARE END W/ LEFT RADIUS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1MA120-10056 PRIMARY | The Boeing Company Div Defense (USA) |
| 60-14502 | Transtar Metals Corp (USA) |
| Reference | Meaning |
|---|---|
| AMS-QQ-A-200/11 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 1MA120D05-10056 | 3/1 Design control — primary reference The Boeing Company Div Defense |
| QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
| ASTM B221 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
NSN 9540-01-367-1991 is a Channel,structural, manufactured by The Boeing Company Div Defense, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
NSN 9540-01-367-1991 has 2 manufacturer part numbers on file: 1MA120-10056 (The Boeing Company Div Defense), 60-14502 (Transtar Metals Corp).
Key specifications for 1MA120-10056: Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.125 INCHES NOMINAL IN; Left Side Flange Height: 1.500 INCHES NOMINAL IN; Heat Treatment: T-73511 SOLUTION HEAT TREATED. 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.
NSN 9540-01-367-1991 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.