The Beam,structural, cataloged under National Stock Number 9540-01-229-8320, 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 Aluminum Co of America. Government technical data includes 21 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 9540-01-229-8320 |
| Primary Part Number | 334522 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Manufacturer | Aluminum Co of America |
| Status | ACTIVE |
| Right Side Top Flange Thickness | 0.110 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Left Side Top Flange Distance to Center of Both Flanges | 1.854 INCHES MINIMUM AND 1.886 INCHES MAXIMUM IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Heat Treatment | T-6 SOLUTION HEAT TREATED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.084 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN |
| Material Document and Classification | AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.084 INCHES MINIMUM AND 0.116 INCHES MAXIMUM IN |
| Basic Shape Style | T SHAPE |
| Weight Per Unit Measure | 0.638 POUNDS PER LINEAR FOOT LBS |
| Nondefinitive Spec/std Data | 7075 ALLOY AND T6 TEMPER |
| Top Flange Width | 3.776 INCHES MINIMUM AND 3.824 INCHES MAXIMUM IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Material | ALUMINUM ALLOY 7075 |
| Fabrication Method | EXTRUDED |
| Leg Thickness | 0.059 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN |
| First Tip Style | SQUARE END |
| Left Side Top Flange Thickness | 0.110 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN |
| Second Tip Relationship to First Tip | IDENTICAL |
| Right Side Top Flange Distance to Center of Both Flanges | 1.854 INCHES MINIMUM AND 1.886 INCHES MAXIMUM 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 |
|---|---|
| 334522 | Aluminum Co of America (USA) |
| 60-21893 | Transtar Metals Corp (USA) |
| Reference | Meaning |
|---|---|
| LS30148-1 | 3/1 Design control — primary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 5/9 Secondary reference U.S. Government activity |
| AMS-QQ-A-200/11 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 9540-01-229-8320 is a Beam,structural, manufactured by Aluminum Co of America, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
NSN 9540-01-229-8320 has 2 manufacturer part numbers on file: 334522 (Aluminum Co of America), 60-21893 (Transtar Metals Corp).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-331-9600. Verify interchangeability with system specifications before substitution.
Key specifications for 334522: Overall Height: 1.160 INCHES MINIMUM AND 1.184 INCHES MAXIMUM IN; Right Side Top Flange Thickness: 0.110 INCHES MINIMUM AND 0.122 INCHES MAXIMUM IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Left Side Top Flange Distance to Center of Both Flanges: 1.854 INCHES MINIMUM AND 1.886 INCHES MAXIMUM IN. 21 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.