The Channel,structural, cataloged under National Stock Number 9540-01-228-4873, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 9540-01-228-4873 |
| Item Name | Channel,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Status | ACTIVE |
| Length | 0.099 FEET NOMINAL FT |
| Base Flange Thickness | 0.125 INCHES NOMINAL IN |
| Left Side Flange Height | 1.125 INCHES NOMINAL IN |
| Fillet Radius Where Right Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| Basic Shape Style | CHANNEL |
| Right Side Flange Height | 1.125 INCHES NOMINAL IN |
| Fillet Radius Where Left Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Right Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| 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 |
|---|---|
| 50-026-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 9540-01-228-4873 is a Channel,structural, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-538-2037, 4820-01-733-1421. Verify interchangeability with system specifications before substitution.
Key specifications for 9540-01-228-4873: Length: 0.099 FEET NOMINAL FT; Base Flange Thickness: 0.125 INCHES NOMINAL IN; Left Side Flange Height: 1.125 INCHES NOMINAL IN; Fillet Radius Where Right Flange Joins Base Flange: 0.125 INCHES NOMINAL IN. 16 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.