The Beam,structural, cataloged under National Stock Number 9540-01-071-6547, 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 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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 | 9540-01-071-6547 |
| Primary Part Number | 15561 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | International Light Metals Corp Sub of Martin Marietta Corp |
| Status | ACTIVE |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.094 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Basic Shape Style | T SHAPE |
| Left Side Top Flange Thickness | 0.050 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE |
| Specification/standard Data | 81755-K40 MANUFACTURERS STANDARD |
| Nondefinitive Spec/std Data | T3511 TEMPER |
| Material | ALUMINUM ALLOY 2024 |
| Left Side Top Flange Distance to Center of Both Flanges | 0.625 INCHES NOMINAL IN |
| First Tip Style | FULL RADIUS |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.094 INCHES NOMINAL IN |
| Right Side Top Flange Thickness | 0.050 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.151 POUNDS PER LINEAR FOOT LBS |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Leg Thickness | 0.050 INCHES NOMINAL IN |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| Top Flange Width | 1.250 INCHES NOMINAL IN |
| Fabrication Method | EXTRUDED |
| Second Tip Relationship to First Tip | IDENTICAL |
| First Tip Radius | 0.026 INCHES NOMINAL IN |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Right Side Top Flange Distance to Center of Both Flanges | 0.625 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 15561 | International Light Metals Corp Sub of Martin Marietta Corp (USA) |
| K40A5T3511 | Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA) |
| QQ-A-200/3 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 9540-01-071-6547 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 9540-01-071-6547 has 3 cross-referenced part numbers: 15561 (International Light Metals Corp Sub of Martin Marietta Corp), K40A5T3511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 7 known substitutes for 9540-01-071-6547: 5910-00-161-8870, 5950-00-308-7930, 9540-00-554-9443 and 4 more. Verify interchangeability with system specifications before substitution.
Key specifications for 15561: Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP; Fillet Radius Where Top Right Flange Joins Web Flange/leg: 0.094 INCHES NOMINAL IN; Left Top Inside Angle: 90.0 DEGREES NOMINAL; Basic Shape Style: T SHAPE. 24 total characteristics are documented in the Federal Logistics Information System.