The Structural Section,special Shape, cataloged under National Stock Number 9540-00-402-0373, 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 Aluminum Co of America. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9540-00-402-0373 |
| Primary Part Number | 81434 |
| Item Name | Structural Section,special Shape |
| FSC / FSG | 9540 / 95 — No Item Name Available |
| Manufacturer | Aluminum Co of America |
| Status | ACTIVE |
| Fabrication Method | EXTRUDED |
| Heat Treatment | O-ANNEALED |
| Material | ALUMINUM ALLOY 7178 |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Nondefinitive Spec/std Data | O TEMPER |
| Weight Per Unit Measure | 0.827 POUNDS PER LINEAR FOOT LBS |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL,TEMPER AND LENGTH REQUIREMENTS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 81434 | Aluminum Co of America (USA) |
| 52510 | International Light Metals Corp Sub of Martin Marietta Corp (USA) |
| 1M5653 | The Boeing Company Div Defense (USA) |
| T11673 | Howmet Corporation Dba Alcoa Howmet, Whitehall, Casting Operations (USA) |
| 60-9942 | Transtar Metals Corp (USA) |
| QQA200-13 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 9540-00-402-0373 is a Structural Section,special Shape, manufactured by Aluminum Co of America, classified under FSC 9540 (No Item Name Available). Status: active.
NSN 9540-00-402-0373 has 6 cross-referenced part numbers: 81434 (Aluminum Co of America), 52510 (International Light Metals Corp Sub of Martin Marietta Corp), 1M5653 (The Boeing Company Div Defense), T11673 (Howmet Corporation Dba Alcoa Howmet, Whitehall, Casting Operations), 60-9942 (Transtar Metals Corp) and 1 more.
There are 10 known substitutes for 9540-00-402-0373: 3455-00-224-3656, 3020-00-537-7663, 6105-00-635-0799 and 7 more. Verify interchangeability with system specifications before substitution.
Key specifications for 81434: Fabrication Method: EXTRUDED; Heat Treatment: O-ANNEALED; Material: ALUMINUM ALLOY 7178; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT. 7 total characteristics are documented in the Federal Logistics Information System.