The Beam,structural, cataloged under National Stock Number 9540-00-838-1774, 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 Transtar Metals Corp. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 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 | 9540-00-838-1774 |
| Primary Part Number | PA11940 |
| Item Name | Beam,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | Transtar Metals Corp |
| Status | ACTIVE |
| Top Flange Width | 3.750 INCHES NOMINAL IN |
| Right Top Inside Angle | 90.0 DEGREES NOMINAL |
| First Tip Style | SQUARE END |
| Right Side Top Flange Thickness | 0.078 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Fabrication Method | EXTRUDED |
| Leg Thickness | 0.078 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Right Side Top Flange Distance to Center of Both Flanges | 1.875 INCHES NOMINAL IN |
| Basic Shape Style | T SHAPE |
| Nondefinitive Spec/std Data | T4 TEMPER |
| Material Document and Classification | AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE |
| Weight Per Unit Measure | 0.510 POUNDS PER LINEAR FOOT LBS |
| Left Side Top Flange Distance to Center of Both Flanges | 1.875 INCHES NOMINAL IN |
| Left Side Top Flange Thickness | 0.078 INCHES NOMINAL IN |
| Heat Treatment | T-4 SOLUTION HEAT TREATED |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Second Tip Relationship to First Tip | IDENTICAL |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.125 INCHES NOMINAL IN |
| Left Top Inside Angle | 90.0 DEGREES NOMINAL |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| PA11940 | Transtar Metals Corp (USA) |
| 17403 | 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) |
| 61252 | Aluminum Co of America (USA) |
| 60-5894 | Transtar Metals Corp (USA) |
| AMS-QQ-A-200/3 | Society of Automotive Engineers Inc (USA) |
NSN 9540-00-838-1774 is a Beam,structural, manufactured by Transtar Metals Corp, classified under FSC 9540 (No Item Name Available). Status: active.
NSN 9540-00-838-1774 has 7 cross-referenced part numbers: PA11940 (Transtar Metals Corp), 17403 (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), 61252 (Aluminum Co of America) and 2 more.
There are 12 known substitutes for 9540-00-838-1774: 5999-00-169-3853, 3455-00-232-4106, 6150-00-487-3038 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for PA11940: Overall Height: 1.750 INCHES NOMINAL IN; Top Flange Width: 3.750 INCHES NOMINAL IN; Right Top Inside Angle: 90.0 DEGREES NOMINAL; First Tip Style: SQUARE END. 22 total characteristics are documented in the Federal Logistics Information System.