The Beam,structural, cataloged under National Stock Number 9540-01-443-6328, 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 Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-443-6328 |
| Primary Part Number | 01AT260T01-0111 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Manufacturer | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems |
| Status | ACTIVE |
| First Tip Inner Radius | 0.062 INCHES NOMINAL IN |
| Right Side Top Flange Thickness | 0.284 INCHES NOMINAL IN |
| Length | 12.000 FEET NOMINAL FT |
| Left Side Top Flange Distance to Center of Both Flanges | 2.045 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.188 INCHES NOMINAL IN |
| Material Document and Classification | MIL-T-81556, COMP 6AL-4V MIL SPEC SINGLE MATERIAL RESPONSE V |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.188 INCHES NOMINAL IN |
| Basic Shape Style | T SHAPE |
| Nondefinitive Spec/std Data | 6AL-4V COMPOSITION AND ANNEALED CONDITION V |
| Top Flange Width | 4.125 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Material | TITANIUM ALLOY UNS R56400 |
| Fabrication Method | EXTRUDED |
| First Tip Outer Radius | 0.062 INCHES NOMINAL IN |
| Leg Thickness | 0.284 INCHES NOMINAL IN |
| First Tip Style | SQUARE W/ INNER AND OUTER CORNER RADII |
| Left Side Top Flange Thickness | 0.284 INCHES NOMINAL IN |
| Second Tip Relationship to First Tip | IDENTICAL |
| Right Side Top Flange Distance to Center of Both Flanges | 2.080 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 |
|---|---|
| 01AT260T01-0111 PRIMARY | Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems (USA) |
NSN 9540-01-443-6328 is a Beam,structural, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
NSN 9540-01-443-6328 has 1 manufacturer part number on file: 01AT260T01-0111 (Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems).
Key specifications for 01AT260T01-0111: First Tip Inner Radius: 0.062 INCHES NOMINAL IN; Overall Height: 2.250 INCHES NOMINAL IN; Right Side Top Flange Thickness: 0.284 INCHES NOMINAL IN; Length: 12.000 FEET NOMINAL FT. 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.