PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-486-6197 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-486-6197 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-486-6197. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Fillet Radius Where Left Flange Joins Base Flange: 0.156 INCHES NOMINAL IN
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Weight Per Unit Measure: 0.270 POUNDS PER LINEAR FOOT LBS
  • Left Inside Angle: 90.0 DEGREES NOMINAL
  • Material: ALUMINUM ALLOY 2024
  • Base Flange Thickness: 0.094 INCHES NOMINAL IN
  • Second Tip Radius: 0.094 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-486-6197, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-486-6197
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Fillet Radius Where Left Flange Joins Base Flange0.156 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Weight Per Unit Measure0.270 POUNDS PER LINEAR FOOT LBS
Left Inside Angle90.0 DEGREES NOMINAL
MaterialALUMINUM ALLOY 2024
Base Flange Thickness0.094 INCHES NOMINAL IN
Second Tip Radius0.094 INCHES NOMINAL IN
Second Tip StyleUPPER RADIUS
Basic Shape StyleANGLE
Left Side Flange Thickness0.094 INCHES NOMINAL IN
Heat TreatmentT-8511 SOLUTION HEAT TREATED
Second Tip Relationship to First TipNOT IDENTICAL
Nondefinitive Spec/std Data2024 ALLOY AND T8511 TEMPER
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
First Tip Radius0.094 INCHES NOMINAL IN
Fabrication MethodEXTRUDED
First Tip StyleRIGHT QUARTER RADIUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
9540-00-266-9099 INTERCHANGEABLE
Angle,structural
9540-00-487-5731 INTERCHANGEABLE
Angle,structural
9540-00-720-1328HA400 INTERCHANGEABLE
Angle,structural
Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept
9540-00-973-9137 INTERCHANGEABLE
Angle,structural
9540-01-071-6539 INTERCHANGEABLE
Angle,structural
9540-01-210-40101MA100D06-10068 INTERCHANGEABLE
Angle,structural
The Boeing Company Div Defense
9540-01-281-7226 INTERCHANGEABLE
Angle,structural
9540-01-299-7733 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AND10134-1403 Airforce-Navy Aeronautical Design Standard
10164540 Nimikkeistokeskus Ncb Finland (FIN)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
K10A69T8511 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
AND10134-1403/QQ-A-200/3-T8511 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
9540PL0900332 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
9540-00-266-9099INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-487-5731INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-720-1328INTERCHANGEABLE
ANGLE,STRUCTURAL
HA400
9540-00-973-9137INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-071-6539INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-210-4010INTERCHANGEABLE
ANGLE,STRUCTURAL
1MA100D06-10068
9540-01-281-7226INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-299-7733INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-486-6197?

NSN 9540-00-486-6197 is a Angle,structural, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-486-6197?

NSN 9540-00-486-6197 has 9 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), AND10134-1403 (Airforce-Navy Aeronautical Design Standard), 10164540 (Nimikkeistokeskus Ncb Finland), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 9540-00-486-6197?

There are 8 known substitutes for 9540-00-486-6197: 9540-00-266-9099, 9540-00-487-5731, 9540-00-720-1328 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Fillet Radius Where Left Flange Joins Base Flange: 0.156 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Weight Per Unit Measure: 0.270 POUNDS PER LINEAR FOOT LBS; Left Inside Angle: 90.0 DEGREES NOMINAL. 19 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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