PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-950-5245 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-950-5245 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-950-5245. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • Heat Treatment: T-6 SOLUTION HEAT TREATED
  • Left Side Flange Thickness: 0.125 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 6061
  • Weight Per Unit Measure: 0.131 POUNDS PER LINEAR FOOT LBS
  • Nondefinitive Spec/std Data: 6061 ALLOY AND T6 TEMPER
  • Base Flange Thickness: 0.125 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-950-5245, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN9540-00-950-5245
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Fabrication MethodEXTRUDED
Heat TreatmentT-6 SOLUTION HEAT TREATED
Left Side Flange Thickness0.125 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 6061
Weight Per Unit Measure0.131 POUNDS PER LINEAR FOOT LBS
Nondefinitive Spec/std Data6061 ALLOY AND T6 TEMPER
Base Flange Thickness0.125 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
Material Document and ClassificationASTM B221 ASSN STD SINGLE MATERIAL RESPONSE
Length12.000 FEET MINIMUM AND 25.000 FEET MAXIMUM FT
Basic Shape StyleANGLE
Left Inside Angle90.0 DEGREES NOMINAL
First Tip StyleSQUARE END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-285-3330146-6 INTERCHANGEABLE
Seal,plain Encased
Mack Trucks Inc Parts Opn
6625-00-691-659910 INTERCHANGEABLE
Adapter,test
Triplett (bluffton) Corporation Dba Lfe Instruments
5940-00-983-6106 INTERCHANGEABLE
Terminal Board
5910-01-037-814160211 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Prestolite Electric Inc
5935-01-121-2187B602-11 INTERCHANGEABLE
Polarizing Key,electrical Connec
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
5998-01-288-562460211 INTERCHANGEABLE
Circuit Card Assembly
Altra Industrial Motion Corp.
3040-01-546-054260-21-1 INTERCHANGEABLE
Cap,linear Actuating Cylinder
Cone Drive Operations Inc
4130-01-562-340660211 INTERCHANGEABLE
Condenser Coil,refrigeration
Crispaire Corp Dba Marvair Co
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
QQA200-8 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
QQ-A-200/8 .5INX.5INX.125THK Federal Specifications Promulgated by General Services Administration Washington DC (USA)
60-211 Transtar Metals Corp (USA)
Related Parts
5330-00-285-3330INTERCHANGEABLE
SEAL,PLAIN ENCASED
146-6
6625-00-691-6599INTERCHANGEABLE
ADAPTER,TEST
10
5940-00-983-6106INTERCHANGEABLE
TERMINAL BOARD
5910-01-037-8141INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
60211
5935-01-121-2187INTERCHANGEABLE
POLARIZING KEY,ELECTRICAL CONNEC
B602-11
5998-01-288-5624INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
60211
3040-01-546-0542INTERCHANGEABLE
CAP,LINEAR ACTUATING CYLINDER
60-21-1
4130-01-562-3406INTERCHANGEABLE
CONDENSER COIL,REFRIGERATION
60211

Frequently Asked Questions

What is NSN 9540-00-950-5245?

NSN 9540-00-950-5245 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 9540-00-950-5245?

NSN 9540-00-950-5245 has 4 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), QQA200-8 (Federal Specifications Promulgated by General Services Administration Washington DC), QQ-A-200/8 .5INX.5INX.125THK (Federal Specifications Promulgated by General Services Administration Washington DC), 60-211 (Transtar Metals Corp).

What NSN replaces 9540-00-950-5245?

There are 8 known substitutes for 9540-00-950-5245: 5330-00-285-3330, 6625-00-691-6599, 5940-00-983-6106 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Fabrication Method: EXTRUDED; Heat Treatment: T-6 SOLUTION HEAT TREATED; Left Side Flange Thickness: 0.125 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 6061. 15 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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