The Beam,structural, cataloged under National Stock Number 9540-01-071-2148, 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-071-2148 |
| Primary Part Number | K40A33T3511 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company |
| Status | ACTIVE |
| Top Flange Width | 2.500 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Second Tip Relationship to First Tip | IDENTICAL |
| Specification/standard Data | 81755-K40 MANUFACTURERS STANDARD |
| Material Document and Classification | QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE |
| Material | ALUMINUM ALLOY 2024 |
| Nondefinitive Spec/std Data | T3511 TEMPER |
| Leg Thickness | 0.064 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.060 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Right Side Top Flange Thickness | 0.064 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.304 POUNDS PER LINEAR FOOT LBS |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.060 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| Left Side Top Flange Thickness | 0.064 INCHES NOMINAL IN |
| Left Side Top Flange Distance to Center of Both Flanges | 1.250 INCHES NOMINAL IN |
| Fabrication Method | EXTRUDED |
| Basic Shape Style | T SHAPE |
| First Tip Style | SQUARE END |
| Right Side Top Flange Distance to Center of Both Flanges | 1.250 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| K40A33T3511 | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| MS14375E061 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 19786 | International Light Metals Corp Sub of Martin Marietta Corp (USA) |
| QQ-A-200/3 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 9540-01-071-2148 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 9540-01-071-2148 has 4 cross-referenced part numbers: K40A33T3511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), MS14375E061 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 19786 (International Light Metals Corp Sub of Martin Marietta Corp), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 5 known substitutes for 9540-01-071-2148: 5306-00-169-8132, 5315-00-244-6714, 9540-00-878-8473 and 2 more. Verify interchangeability with system specifications before substitution.
Key specifications for K40A33T3511: Top Flange Width: 2.500 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Second Tip Relationship to First Tip: IDENTICAL; Overall Height: 1.500 INCHES NOMINAL IN. 23 total characteristics are documented in the Federal Logistics Information System.