The Beam,structural, cataloged under National Stock Number 9540-00-261-5623, 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 Corp. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System. 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 government interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 9540-00-261-5623 |
| Primary Part Number | LS3701 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | Lockheed Martin Corp |
| Status | CANCELLED |
| Right Side Flange Height | 1.500 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.093 INCHES NOMINAL IN |
| Third Tip Diameter | 0.240 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| Third Tip Style | RIGHT BULBOUS |
| Left Bottom Inside Angle | 90.0 DEGREES NOMINAL |
| Left Side Bottom Flange Distance to Center of Both Flanges | 0.750 INCHES NOMINAL IN |
| Weight Per Unit Measure | 0.560 POUNDS PER LINEAR FOOT LBS |
| Left Side Flange Height | 1.500 INCHES NOMINAL IN |
| Fourth Tip Diameter | 0.240 INCHES NOMINAL IN |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.120 INCHES NOMINAL IN |
| Fillet Radius Where Bottom Right Flange Joins Web Flange/leg | 0.120 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | T-3511 TEMPER |
| Material Document and Classification | QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE |
| Material | ALUMINUM ALLOY 2024 |
| First Tip Style | SQUARE END |
| Right Side Flange Thickness | 0.093 INCHES NOMINAL IN |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.120 INCHES NOMINAL IN |
| Right Side Bottom Flange Distance to Center of Both Flanges | 0.750 INCHES NOMINAL IN |
| Fabrication Method | EXTRUDED |
| Fourth Tip Style | LEFT BULBOUS |
| Fillet Radius Where Bottom Left Flange Joins Web Flange/leg | 0.120 INCHES NOMINAL IN |
| Fourth Tip Relationship to Preceding Tips | NOT IDENTICAL |
| Basic Shape Style | H SHAPE |
| Third Tip Relationship to Preceding Tips | NOT IDENTICAL |
| Left Side Top Flange Distance to Center of Both Flanges | 0.750 INCHES NOMINAL IN |
| Right Bottom Inside Angle | 90.0 DEGREES NOMINAL |
| Right Side Top Flange Distance to Center of Both Flanges | 0.750 INCHES NOMINAL IN |
| Third Tip Radius | 0.060 INCHES NOMINAL IN |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| LS3701 | Lockheed Martin Corp (USA) |
| 5807 | Reynolds Metals Co (USA) |
| 11352-2 | International Light Metals Corp Sub of Martin Marietta Corp (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) |
| 36542 | Aluminum Co of America (USA) |
NSN 9540-00-261-5623 is a Beam,structural, manufactured by Lockheed Martin Corp, classified under FSC 9540 (No Item Name Available). Status: cancelled.
NSN 9540-00-261-5623 has 7 cross-referenced part numbers: LS3701 (Lockheed Martin Corp), 5807 (Reynolds Metals Co), 11352-2 (International Light Metals Corp Sub of Martin Marietta Corp), AMS-QQ-A-200/3 (Sae International Dba Sae International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.
There are 12 known substitutes for 9540-00-261-5623: 2825-00-036-3377, 5950-00-329-5504, 2520-00-507-2414 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for LS3701: Right Side Flange Height: 1.500 INCHES NOMINAL IN; Left Side Flange Thickness: 0.093 INCHES NOMINAL IN; Third Tip Diameter: 0.240 INCHES NOMINAL IN; Right Top Inside Angle: 90.0 DEGREES NOMINAL. 30 total characteristics are documented in the Federal Logistics Information System.
NSN 9540-00-261-5623 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.