PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-528-7323 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-528-7323 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-528-7323. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Second Tip Relationship to First Tip: IDENTICAL
  • Basic Shape Style: ANGLE
  • Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN
  • Base Flange Thickness: 0.125 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 7075
  • First Tip Style: SQUARE W/ INNER AND OUTER CORNER RADII
  • Nondefinitive Spec/std Data: 7075 ALLOY AND T6 TEMPER
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-528-7323, 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 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-528-7323
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Second Tip Relationship to First TipIDENTICAL
Basic Shape StyleANGLE
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Base Flange Thickness0.125 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 7075
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Weight Per Unit Measure0.740 POUNDS PER LINEAR FOOT LBS
Outer Radius Where Left Flange Joins Base Flange0.031 INCHES NOMINAL IN
First Tip Inner Radius0.031 INCHES NOMINAL IN
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Fabrication MethodEXTRUDED
Left Inside Angle90.0 DEGREES NOMINAL
Left Side Flange Thickness0.125 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED
First Tip Outer Radius0.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5920-00-581-6504 INTERCHANGEABLE
Fuse,cartridge
4720-00-807-7088LL18 INTERCHANGEABLE
Hose,nonmetallic
Wisconsin Motors, Llc
5940-00-846-6461L1361BLACK INTERCHANGEABLE
Post,binding,electrical
Dialight Europe Limited
5330-01-330-2244 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
CVS32082 Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (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)
55924 Aluminum Co of America (USA)
60-10109 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
PA3436 Transtar Metals Corp (USA)
Related Parts
5920-00-581-6504INTERCHANGEABLE
FUSE,CARTRIDGE
4720-00-807-7088INTERCHANGEABLE
HOSE,NONMETALLIC
LL18
5940-00-846-6461INTERCHANGEABLE
POST,BINDING,ELECTRICAL
L1361BLACK
5330-01-330-2244INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA

Frequently Asked Questions

What is NSN 9540-00-528-7323?

NSN 9540-00-528-7323 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 9540-00-528-7323?

NSN 9540-00-528-7323 has 8 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), CVS32082 (Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), 55924 (Aluminum Co of America) and 3 more.

What NSN replaces 9540-00-528-7323?

There are 4 known substitutes for 9540-00-528-7323: 5920-00-581-6504, 4720-00-807-7088, 5940-00-846-6461 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Second Tip Relationship to First Tip: IDENTICAL; Basic Shape Style: ANGLE; Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN; Base Flange Thickness: 0.125 INCHES NOMINAL IN. 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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