PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-720-0648 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-720-0648 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-720-0648. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Second Tip Radius: 0.062 INCHES NOMINAL IN
  • Fillet Radius Where Left Flange Joins Base Flange: 0.250 INCHES NOMINAL IN
  • First Tip Radius: 0.062 INCHES NOMINAL IN
  • Left Side Flange Thickness: 0.188 INCHES NOMINAL IN
  • First Tip Style: RIGHT QUARTER RADIUS
  • Material: ALUMINUM ALLOY 7075
  • Second Tip Relationship to First Tip: NOT IDENTICAL
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-720-0648, 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 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-720-0648
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 Radius0.062 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.250 INCHES NOMINAL IN
First Tip Radius0.062 INCHES NOMINAL IN
Left Side Flange Thickness0.188 INCHES NOMINAL IN
First Tip StyleRIGHT QUARTER RADIUS
MaterialALUMINUM ALLOY 7075
Second Tip Relationship to First TipNOT IDENTICAL
Left Inside Angle90.0 DEGREES NOMINAL
Basic Shape StyleANGLE
Second Tip StyleUPPER RADIUS
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Heat TreatmentT-6 SOLUTION HEAT TREATED
Weight Per Unit Measure0.660 POUNDS PER LINEAR FOOT LBS
Base Flange Thickness0.125 INCHES NOMINAL IN
Fabrication MethodEXTRUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2810-00-210-5460429100 INTERCHANGEABLE
Cover and Plug Asse
Curtiss-Wright Controls, Inc. Div Actuation Division
5998-00-405-515223328 INTERCHANGEABLE
Electronic Components Assembly
Hamilton Sundstrand Corporation Dba Collins Aerospace
3020-00-541-365323328 INTERCHANGEABLE
Chain,roller
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
5120-01-305-8152 INTERCHANGEABLE
Wrench,box and Open End Box,comb
4730-01-328-123160-11091 INTERCHANGEABLE
Nozzle,vaporizing
Meggitt Safety Systems Inc
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
60-11091 Transtar Metals Corp (USA)
PA1329 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
23328 Aluminum Co of America (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
2810-00-210-5460INTERCHANGEABLE
COVER AND PLUG ASSE
429100
5998-00-405-5152INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
23328
3020-00-541-3653INTERCHANGEABLE
CHAIN,ROLLER
23328
5120-01-305-8152INTERCHANGEABLE
WRENCH,BOX AND OPEN END BOX,COMB
4730-01-328-1231INTERCHANGEABLE
NOZZLE,VAPORIZING
60-11091

Frequently Asked Questions

What is NSN 9540-00-720-0648?

NSN 9540-00-720-0648 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 9540-00-720-0648?

NSN 9540-00-720-0648 has 7 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), 60-11091 (Transtar Metals Corp), PA1329 (Transtar Metals Corp), AMS-QQ-A-200/11 (Sae International Dba Sae International) and 2 more.

What NSN replaces 9540-00-720-0648?

There are 5 known substitutes for 9540-00-720-0648: 2810-00-210-5460, 5998-00-405-5152, 3020-00-541-3653 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Second Tip Radius: 0.062 INCHES NOMINAL IN; Fillet Radius Where Left Flange Joins Base Flange: 0.250 INCHES NOMINAL IN; First Tip Radius: 0.062 INCHES NOMINAL IN; Left Side Flange Thickness: 0.188 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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