The Beam,structural, cataloged under National Stock Number 9540-01-071-8859, 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 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-01-071-8859 |
| Primary Part Number | K40A70T8511 |
| 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 Thickness | 0.080 INCHES NOMINAL IN |
| Fabrication Method | EXTRUDED |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Material | ALUMINUM ALLOY 2024 |
| Top Flange Width | 2.375 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| First Tip Style | SQUARE END |
| Second Tip Relationship to First Tip | IDENTICAL |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Leg Thickness | 0.080 INCHES NOMINAL IN |
| Heat Treatment | T-8511 SOLUTION HEAT TREATED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Specification/standard Data | 81755-K40 MANUFACTURERS STANDARD |
| Nondefinitive Spec/std Data | T8511 TEMPER |
| Material Document and Classification | AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE |
| Right Side Top Flange Distance to Center of Both Flanges | 1.1875 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.480 POUNDS PER LINEAR FOOT LBS |
| Basic Shape Style | T SHAPE |
| Left Side Top Flange Thickness | 0.080 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Left Side Top Flange Distance to Center of Both Flanges | 1.1875 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| K40A70T8511 | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| MS14375E171 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 18553 | International Light Metals Corp Sub of Martin Marietta Corp (USA) |
| AMS-QQ-A-200/3 | Society of Automotive Engineers Inc (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) |
NSN 9540-01-071-8859 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 9540-01-071-8859 has 6 cross-referenced part numbers: K40A70T8511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), MS14375E171 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 18553 (International Light Metals Corp Sub of Martin Marietta Corp), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc), AMS-QQ-A-200/3 (Sae International Dba Sae International) and 1 more.
There are 7 known substitutes for 9540-01-071-8859: 2805-00-339-5598, 6145-00-669-6705, 9540-01-071-1516 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for K40A70T8511: Right Side Top Flange Thickness: 0.080 INCHES NOMINAL IN; Fabrication Method: EXTRUDED; Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP; Material: ALUMINUM ALLOY 2024. 23 total characteristics are documented in the Federal Logistics Information System.