PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-01-071-7379 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-071-7379 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-071-7379. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Heat Treatment: T-8511 SOLUTION HEAT TREATED
  • First Tip Radius: 0.094 INCHES NOMINAL IN
  • Basic Shape Style: ANGLE
  • Material: ALUMINUM ALLOY 2024
  • Fabrication Method: EXTRUDED
  • Weight Per Unit Measure: 0.215 POUNDS PER LINEAR FOOT LBS
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-01-071-7379, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-01-071-7379
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
Second Tip Relationship to First TipNOT IDENTICAL
Heat TreatmentT-8511 SOLUTION HEAT TREATED
First Tip Radius0.094 INCHES NOMINAL IN
Basic Shape StyleANGLE
MaterialALUMINUM ALLOY 2024
Fabrication MethodEXTRUDED
Weight Per Unit Measure0.215 POUNDS PER LINEAR FOOT LBS
First Tip StyleRIGHT QUARTER RADIUS
Second Tip Radius0.094 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Left Side Flange Thickness0.094 INCHES NOMINAL IN
Base Flange Thickness0.094 INCHES NOMINAL IN
Nondefinitive Spec/std Data2024 ALLOY AND T8511 TEMPER
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Second Tip StyleUPPER RADIUS
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5310-00-208-46945-440-0 INTERCHANGEABLE
Nut,plain,clinch
Penn Engineering & Manufacturing Corp
5965-00-420-5653539-030-001-603 INTERCHANGEABLE
Cushion,ear
Roanwell, Llc
6115-00-970-000654400 INTERCHANGEABLE
Generator Set,diesel Engine
Stewart & Stevenson Power Products Llc
9540-01-071-7378 INTERCHANGEABLE
Angle,structural
9540-01-071-8851 INTERCHANGEABLE
Angle,structural
4820-01-232-2574RK1584R INTERCHANGEABLE
Parts Kit,pressure Regulating VA
Arrow Pneumatics Inc
5995-01-694-642254400 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cables to Go
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
MS14284E101 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
K10A60T8511 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
NAS342-10 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
54400 International Light Metals Corp Sub of Martin Marietta Corp (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
34828 Alcoa/reynolds Metals Company (USA)
Related Parts
5310-00-208-4694INTERCHANGEABLE
NUT,PLAIN,CLINCH
5-440-0
5965-00-420-5653INTERCHANGEABLE
CUSHION,EAR
539-030-001-603
6115-00-970-0006INTERCHANGEABLE
GENERATOR SET,DIESEL ENGINE
54400
9540-01-071-7378INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-071-8851INTERCHANGEABLE
ANGLE,STRUCTURAL
4820-01-232-2574INTERCHANGEABLE
PARTS KIT,PRESSURE REGULATING VA
RK1584R
5995-01-694-6422INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
54400

Frequently Asked Questions

What is NSN 9540-01-071-7379?

NSN 9540-01-071-7379 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 9540-01-071-7379?

NSN 9540-01-071-7379 has 9 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), MS14284E101 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AMS-QQ-A-200/3 (Sae International Dba Sae International), K10A60T8511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), NAS342-10 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 4 more.

What NSN replaces 9540-01-071-7379?

There are 7 known substitutes for 9540-01-071-7379: 5310-00-208-4694, 5965-00-420-5653, 6115-00-970-0006 and 4 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: NOT IDENTICAL; Heat Treatment: T-8511 SOLUTION HEAT TREATED; First Tip Radius: 0.094 INCHES NOMINAL IN; Basic Shape Style: ANGLE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-01-071-7379 still in active supply?

NSN 9540-01-071-7379 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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