The Beam,structural, cataloged under National Stock Number 9540-00-528-9318, 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 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-00-528-9318 |
| Primary Part Number | 1M5154 |
| Item Name | Beam,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 |
| Left Side Top Flange Distance to Center of Both Flanges | 1.120 INCHES NOMINAL IN |
| Basic Shape Style | T SHAPE |
| Leg Thickness | 0.081 INCHES NOMINAL IN |
| Left Side Top Flange Thickness | 0.081 INCHES NOMINAL IN |
| 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 |
|---|---|
| 1M5154 PRIMARY | The Boeing Company Div Defense (USA) |
| 57973 PRIMARY | Aluminum Co of America (USA) |
| Reference | Meaning |
|---|---|
| AMS-QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| QQ-A-200/3 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/3 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 9540-00-528-9318 is a Beam,structural, manufactured by The Boeing Company Div Defense, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
NSN 9540-00-528-9318 has 2 manufacturer part numbers on file: 1M5154 (The Boeing Company Div Defense), 57973 (Aluminum Co of America).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-461-8724. Verify interchangeability with system specifications before substitution.
Key specifications for 1M5154: Overall Height: 1.340 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Left Side Top Flange Distance to Center of Both Flanges: 1.120 INCHES NOMINAL IN; Basic Shape Style: T SHAPE. 5 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.