PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

43821Angle,structural

Aluminum Co of America · NSN 9540-01-378-6344 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-378-6344 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-378-6344. Primary manufacturer part number: 43821.
Features
  • Angle,structural — FSC 9540
  • Heat Treatment: T-6 SOLUTION HEAT TREATED
  • Material Document and Classification: QQ-A-200/11 FED SPEC 1ST MATERIAL RESPONSE
  • Material: ALUMINUM ALLOY 7075
  • Nondefinitive Spec/std Data: T6 TEMPER
  • 4 verified cross-references
  • Primary manufacturer: Aluminum Co of America
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-01-378-6344, 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 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-01-378-6344
Primary Part Number43821
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusACTIVE
Heat TreatmentT-6 SOLUTION HEAT TREATED
Material Document and ClassificationQQ-A-200/11 FED SPEC 1ST MATERIAL RESPONSE
MaterialALUMINUM ALLOY 7075
Nondefinitive Spec/std DataT6 TEMPER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-115-61194382-1 INTERCHANGEABLE
Washer,flat
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
5930-01-025-254543821 INTERCHANGEABLE
Switch,flow
Setra Systems, Inc. Dba Gems Sensors
5940-01-728-976712606526 INTERCHANGEABLE
Adapter,battery Terminal
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
43821 PRIMARY Aluminum Co of America (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-115-6119INTERCHANGEABLE
WASHER,FLAT
4382-1
5930-01-025-2545INTERCHANGEABLE
SWITCH,FLOW
43821
5940-01-728-9767INTERCHANGEABLE
ADAPTER,BATTERY TERMINAL
12606526

Frequently Asked Questions

What is NSN 9540-01-378-6344?

NSN 9540-01-378-6344 is a Angle,structural, manufactured by Aluminum Co of America, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-01-378-6344?

NSN 9540-01-378-6344 has 4 cross-referenced part numbers: AMS-QQ-A-200/11 (Sae International Dba Sae International), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), 43821 (Aluminum Co of America), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 9540-01-378-6344?

There are 3 known substitutes for 9540-01-378-6344: 5310-00-115-6119, 5930-01-025-2545, 5940-01-728-9767. Verify interchangeability with system specifications before substitution.

What are the specifications of 43821?

Key specifications for 43821: Heat Treatment: T-6 SOLUTION HEAT TREATED; Material Document and Classification: QQ-A-200/11 FED SPEC 1ST MATERIAL RESPONSE; Material: ALUMINUM ALLOY 7075; Nondefinitive Spec/std Data: T6 TEMPER. 5 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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