The Beam,structural, cataloged under National Stock Number 9540-01-071-0129, 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 International Light Metals Corp Sub of Martin Marietta Corp. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 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 | 9540-01-071-0129 |
| Primary Part Number | 15303 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | International Light Metals Corp Sub of Martin Marietta Corp |
| Status | ACTIVE |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.130 INCHES NOMINAL IN |
| Basic Shape Style | T SHAPE |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Weight Per Unit Measure | 0.606 POUNDS PER LINEAR FOOT LBS |
| Material | ALUMINUM ALLOY 2024 |
| Left Side Top Flange Distance to Center of Both Flanges | 1.485 INCHES NOMINAL IN |
| Right Side Top Flange Distance to Center of Both Flanges | 1.485 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Right Side Top Flange Thickness | 0.087 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| 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 |
| Heat Treatment | T-8511 SOLUTION HEAT TREATED |
| Fabrication Method | EXTRUDED |
| Second Tip Relationship to First Tip | IDENTICAL |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Left Side Top Flange Thickness | 0.087 INCHES NOMINAL IN |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.130 INCHES NOMINAL IN |
| Top Flange Width | 2.970 INCHES NOMINAL IN |
| First Tip Style | SQUARE END |
| Leg Thickness | 0.087 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 15303 | International Light Metals Corp Sub of Martin Marietta Corp (USA) |
| 77007-A | Pimalco Inc. Div Alcoa Inc Global Hard Alloy Extrusions (USA) |
| K40A75T8511 | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| MS14375E175 | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| AMS-QQ-A-200/3 | Sae International Dba Sae International (USA) |
| AMS-QQ-A-200/3 | Society of Automotive Engineers Inc (USA) |
| QQ-A-200/3 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 9540-01-071-0129 is a Beam,structural, manufactured by International Light Metals Corp Sub of Martin Marietta Corp, classified under FSC 9540 (No Item Name Available). Status: active.
NSN 9540-01-071-0129 has 7 cross-referenced part numbers: 15303 (International Light Metals Corp Sub of Martin Marietta Corp), 77007-A (Pimalco Inc. Div Alcoa Inc Global Hard Alloy Extrusions), K40A75T8511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), MS14375E175 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AMS-QQ-A-200/3 (Sae International Dba Sae International) and 2 more.
There are 12 known substitutes for 9540-01-071-0129: 5331-00-054-6880, 5905-00-259-2299, 9540-00-294-9938 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 15303: Fillet Radius Where Top Left Flange Joins Web Flange/leg: 0.130 INCHES NOMINAL IN; Basic Shape Style: T SHAPE; Left Top Inside Angle: 90.0 DEGREES NOMINAL; Weight Per Unit Measure: 0.606 POUNDS PER LINEAR FOOT LBS. 23 total characteristics are documented in the Federal Logistics Information System.