PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-179-9589 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-179-9589 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-179-9589. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Material: ALUMINUM ALLOY 7075
  • Weight Per Unit Measure: 0.120 POUNDS PER LINEAR FOOT LBS
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Material: ALUMINUM ALLOY 7075
  • Heat Treatment: T-6511 SOLUTION HEAT TREATED
  • Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
  • Nondefinitive Spec/std Data: 7075 ALLOY AND T6511 TEMPER
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-179-9589, 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 American Society for Testing and Materials Dba Astm International. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-179-9589
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
MaterialALUMINUM ALLOY 7075
Weight Per Unit Measure0.120 POUNDS PER LINEAR FOOT LBS
Second Tip Relationship to First TipNOT IDENTICAL
MaterialALUMINUM ALLOY 7075
Heat TreatmentT-6511 SOLUTION HEAT TREATED
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std Data7075 ALLOY AND T6511 TEMPER
Left Inside Angle90.0 DEGREES NOMINAL
Base Flange Thickness0.063 INCHES NOMINAL IN
First Tip Radius0.063 INCHES NOMINAL IN
First Tip StyleRIGHT QUARTER RADIUS
Fabrication MethodEXTRUDED
Base Flange Thickness0.063 INCHES NOMINAL IN
Left Side Flange Thickness0.063 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Left Side Flange Thickness0.063 INCHES NOMINAL IN
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
First Tip Radius0.063 INCHES NOMINAL IN
Nondefinitive Spec/std Data7075 ALLOY AND T6511 TEMPER
First Tip StyleRIGHT QUARTER RADIUS
Second Tip StyleUPPER RADIUS
Second Tip StyleUPPER RADIUS
Heat TreatmentT-6511 SOLUTION HEAT TREATED
Weight Per Unit Measure0.120 POUNDS PER LINEAR FOOT LBS
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Second Tip Radius0.063 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
9540-00-484-8909 INTERCHANGEABLE
Angle,structural
9540-00-488-3961 INTERCHANGEABLE
Angle,structural
9540-00-834-8803 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AND10134-0702/QQ-A-200/11-T6511 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
AND10134-0702 Airforce-Navy Aeronautical Design Standard
AMS10134-0702 Society of Automotive Engineers Inc (USA)
10164536 Nimikkeistokeskus Ncb Finland (FIN)
AMS10134-0702 Sae International Dba Sae International (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
LS10134-0702-5 Lockheed Martin Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
Related Parts
9540-00-484-8909INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-488-3961INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-834-8803INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-179-9589?

NSN 9540-00-179-9589 is a Angle,structural, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-179-9589?

NSN 9540-00-179-9589 has 10 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), AND10134-0702/QQ-A-200/11-T6511 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), AND10134-0702 (Airforce-Navy Aeronautical Design Standard), AMS10134-0702 (Society of Automotive Engineers Inc), 10164536 (Nimikkeistokeskus Ncb Finland) and 5 more.

What NSN replaces 9540-00-179-9589?

There are 3 known substitutes for 9540-00-179-9589: 9540-00-484-8909, 9540-00-488-3961, 9540-00-834-8803. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Material: ALUMINUM ALLOY 7075; Weight Per Unit Measure: 0.120 POUNDS PER LINEAR FOOT LBS; Second Tip Relationship to First Tip: NOT IDENTICAL; Overall Width: 0.875 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-179-9589 still in active supply?

NSN 9540-00-179-9589 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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