The Angle,structural, cataloged under National Stock Number 9540-00-251-2574, 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 Alcoa/reynolds Metals Company. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 13 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 | 9540-00-251-2574 |
| Primary Part Number | 4074 |
| Item Name | Angle,structural |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | Alcoa/reynolds Metals Company |
| Status | ACTIVE |
| Base Flange Thickness | 0.125 INCHES NOMINAL IN |
| Basic Shape Style | ANGLE |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Material | ALUMINUM ALLOY 2024 |
| Weight Per Unit Measure | 0.510 POUNDS PER LINEAR FOOT LBS |
| Second Tip Relationship to First Tip | NOT IDENTICAL |
| Fabrication Method | EXTRUDED |
| Nondefinitive Spec/std Data | 2024 ALLOY AND T3511 TEMPER |
| Material Document and Classification | AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE |
| Heat Treatment | T-3511 SOLUTION HEAT TREATED |
| Fillet Radius Where Left Flange Joins Base Flange | 0.187 INCHES NOMINAL IN |
| First Tip Style | RIGHT QUARTER RADIUS |
| Second Tip Radius | 0.093 INCHES NOMINAL IN |
| Left Side Flange Thickness | 0.125 INCHES NOMINAL IN |
| First Tip Radius | 0.093 INCHES NOMINAL IN |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Second Tip Style | UPPER RADIUS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4074 | Alcoa/reynolds Metals Company (USA) |
| E121211 | General Dynamics Corp Convair Div Lindbergh Field Facility (USA) |
| QQ-A-200/3 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| E121211 | Tracor Flight Systems Inc Sub of Tracor Inc (USA) |
| 1M2110 | The Boeing Company Div Defense (USA) |
| AMS-QQ-A-200/3 | Society of Automotive Engineers Inc (USA) |
| 60-354 | Transtar Metals Corp (USA) |
| ASTM B221 | American Society for Testing and Materials Dba Astm International (USA) |
| PA4420 | Transtar Metals Corp (USA) |
| E121211 | Hughes Missile Systems Co San Diego (USA) |
| BAC1503-2963 | The Boeing Company Div Legacy Wichita (USA) |
| 734-19 | Aluminum Co of America (USA) |
| AMS-QQ-A-200/3 | Sae International Dba Sae International (USA) |
| E121211 | Bae Systems Technology Solutions & Services Inc. (USA) |
NSN 9540-00-251-2574 is a Angle,structural, manufactured by Alcoa/reynolds Metals Company, classified under FSC 9540 (No Item Name Available). Status: active.
NSN 9540-00-251-2574 has 14 cross-referenced part numbers: 4074 (Alcoa/reynolds Metals Company), E121211 (General Dynamics Corp Convair Div Lindbergh Field Facility), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), E121211 (Tracor Flight Systems Inc Sub of Tracor Inc), 1M2110 (The Boeing Company Div Defense) and 9 more.
There are 12 known substitutes for 9540-00-251-2574: 5905-00-140-0570, 5960-00-147-9861, 5360-00-349-8131 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4074: Overall Width: 2.500 INCHES NOMINAL IN; Base Flange Thickness: 0.125 INCHES NOMINAL IN; Overall Height: 1.000 INCHES NOMINAL IN; Basic Shape Style: ANGLE. 19 total characteristics are documented in the Federal Logistics Information System.