The Channel,structural, cataloged under National Stock Number 9540-00-188-1573, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-00-188-1573 |
| Item Name | Channel,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| Length | 12.000 FEET NOMINAL FT |
| Base Flange Thickness | 0.125 INCHES NOMINAL IN |
| Left Side Flange Height | 1.500 INCHES NOMINAL IN |
| Heat Treatment | T-6 SOLUTION HEAT TREATED |
| Material Document and Classification | AMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Left Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 1.500 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.787 POUNDS PER LINEAR FOOT LBS |
| Right Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 6061 ALLOY AND T6 TEMPER |
| Right Inside Angle | 90.0 DEGREES NOMINAL |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Material | ALUMINUM ALLOY 6061 |
| Fabrication Method | EXTRUDED |
| First Tip Style | SQUARE END |
| 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 |
|---|---|
| AMS-QQ-A-200/8 | 5/9 Secondary reference Sae International Dba Sae International |
| PA7100 | 5/9 Secondary reference Transtar Metals Corp |
| SAE-AMS-QQ-A-200/8 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 60-3782 | 3/1 Design control — primary reference Transtar Metals Corp |
| 8980 | 3/1 Design control — primary reference Alcoa/reynolds Metals Company |
| 21770 | 5/9 Secondary reference International Light Metals Corp Sub of Martin Marietta Corp |
| QQ-A-200/8 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/8 | 5/9 Secondary reference U.S. Government activity |
| 40517 | 3/1 Design control — primary reference Aluminum Co of America |
NSN 9540-00-188-1573 is a Channel,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
9 possible matches (shared part number, not a government interchangeability claim): 5365-00-348-0943, 1650-00-436-0333, 5950-00-476-5596. Verify interchangeability with system specifications before substitution.
Key specifications for 9540-00-188-1573: Length: 12.000 FEET NOMINAL FT; Base Flange Thickness: 0.125 INCHES NOMINAL IN; Left Side Flange Height: 1.500 INCHES NOMINAL IN; Heat Treatment: T-6 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.