The Beam,structural, cataloged under National Stock Number 9540-01-071-0123, is classified within Federal Supply Class 9540 (No Item Name Available) of the Metal Bars, Sheets, and Shapes group. The primary manufacturer of record is Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-071-0123 |
| Primary Part Number | K40A12T3511 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company |
| Status | ACTIVE |
| Right Side Top Flange Distance to Center of Both Flanges | 0.750 INCHES NOMINAL IN |
| Basic Shape Style | T SHAPE |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Right Side Top Flange Thickness | 0.062 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Weight Per Unit Measure | 0.205 POUNDS PER LINEAR FOOT LBS |
| Specification/standard Data | 81755-K40 MANUFACTURERS STANDARD |
| Material Document and Classification | AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE |
| Nondefinitive Spec/std Data | T3511 TEMPER |
| Second Tip Relationship to First Tip | IDENTICAL |
| Leg Thickness | 0.062 INCHES NOMINAL IN |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| First Tip Style | SQUARE END |
| Top Flange Width | 1.500 INCHES NOMINAL IN |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.062 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Left Side Top Flange Thickness | 0.062 INCHES NOMINAL IN |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.062 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Left Side Top Flange Distance to Center of Both Flanges | 0.750 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Fabrication Method | EXTRUDED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| K40A12T3511 | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| 24826 | Aluminum Co of America (USA) |
| AMS-QQ-A-200/3 | Sae International Dba Sae International (USA) |
| QQ-A-200/3 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| AMS-QQ-A-200/3 | Society of Automotive Engineers Inc (USA) |
| 9540PL0900346 | Jednolity Indeks Materialowy - Uniform Material Index (POL) |
| MS14375E027 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 60-3129 | Transtar Metals Corp (USA) |
| 5781 | Alcoa/reynolds Metals Company (USA) |
NSN 9540-01-071-0123 is a Beam,structural, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 9540 (No Item Name Available). Status: active.
NSN 9540-01-071-0123 has 9 cross-referenced part numbers: K40A12T3511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 24826 (Aluminum Co of America), AMS-QQ-A-200/3 (Sae International Dba Sae International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc) and 4 more.
There are 12 known substitutes for 9540-01-071-0123: 4730-00-142-1158, 6750-00-198-4668, 4730-00-222-0966 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for K40A12T3511: Right Side Top Flange Distance to Center of Both Flanges: 0.750 INCHES NOMINAL IN; Basic Shape Style: T SHAPE; Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP; Right Side Top Flange Thickness: 0.062 INCHES NOMINAL IN. 23 total characteristics are documented in the Federal Logistics Information System.