PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-197-9861 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-197-9861 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-197-9861. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Second Tip Style: UPPER RADIUS
  • Left Side Flange Thickness: 0.250 INCHES NOMINAL IN
  • Length: 20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT
  • Weight Per Unit Measure: 1.130 POUNDS PER LINEAR FOOT LBS
  • Basic Shape Style: ANGLE
  • Length: 20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-197-9861, 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 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-197-9861
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 TipNOT IDENTICAL
Second Tip StyleUPPER RADIUS
Left Side Flange Thickness0.250 INCHES NOMINAL IN
Length20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT
Weight Per Unit Measure1.130 POUNDS PER LINEAR FOOT LBS
Basic Shape StyleANGLE
Length20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT
First Tip Radius0.125 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 6061
Fillet Radius Where Left Flange Joins Base Flange0.250 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 6061
Second Tip Radius0.125 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED
Left Inside Angle90.0 DEGREES NOMINAL
Weight Per Unit Measure1.130 POUNDS PER LINEAR FOOT LBS
Nondefinitive Spec/std Data6061 ALLOY AND T6 TEMPER
Material Document and ClassificationAMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
Second Tip Relationship to First TipNOT IDENTICAL
First Tip Radius0.125 INCHES NOMINAL IN
Fabrication MethodEXTRUDED
First Tip StyleUPPER RADIUS
Basic Shape StyleANGLE
Second Tip StyleUPPER RADIUS
Base Flange Thickness0.125 INCHES NOMINAL IN
Material Document and ClassificationAMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std Data6061 ALLOY AND T6 TEMPER
Fillet Radius Where Left Flange Joins Base Flange0.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
9540-00-542-2710 INTERCHANGEABLE
Angle,structural
9540-00-555-2873 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/8 Society of Automotive Engineers Inc (USA)
734RR Aluminum Co of America (USA)
QQ-A-200/8 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
SAE-AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
Related Parts
9540-00-542-2710INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-555-2873INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-197-9861?

NSN 9540-00-197-9861 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 9540-00-197-9861?

NSN 9540-00-197-9861 has 6 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), AMS-QQ-A-200/8 (Society of Automotive Engineers Inc), 734RR (Aluminum Co of America), QQ-A-200/8 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/8 (Sae International Dba Sae International) and 1 more.

What NSN replaces 9540-00-197-9861?

There are 2 known substitutes for 9540-00-197-9861: 9540-00-542-2710, 9540-00-555-2873. 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; Second Tip Style: UPPER RADIUS; Left Side Flange Thickness: 0.250 INCHES NOMINAL IN; Length: 20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT. 30 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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