PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-720-4663 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-720-4663 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-720-4663. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Basic Shape Style: ANGLE
  • Material: ALUMINUM ALLOY 7075
  • Heat Treatment: T-6 SOLUTION HEAT TREATED
  • Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN
  • First Tip Style: SQUARE END
  • Left Inside Angle: 90.0 DEGREES NOMINAL
  • Base Flange Thickness: 0.064 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-720-4663, 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 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-720-4663
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Basic Shape StyleANGLE
MaterialALUMINUM ALLOY 7075
Heat TreatmentT-6 SOLUTION HEAT TREATED
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
First Tip StyleSQUARE END
Left Inside Angle90.0 DEGREES NOMINAL
Base Flange Thickness0.064 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Left Side Flange Thickness0.064 INCHES NOMINAL IN
Fabrication MethodEXTRUDED
Weight Per Unit Measure0.164 POUNDS PER LINEAR FOOT LBS
Length12.000 FEET NOMINAL FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3030-00-118-5441 INTERCHANGEABLE
Belts,v,matched Set
5310-00-185-6345 INTERCHANGEABLE
Nut,plain,round
5330-00-298-3762 INTERCHANGEABLE
Gasket
4820-00-389-9270 INTERCHANGEABLE
Guide,valve Stem
6665-00-490-247916386 INTERCHANGEABLE
Combustible Gas Indicator Set,po
Davis Inotek Instruments, Llc Dba Davis Calibration
5330-00-884-768222492 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
2540-01-062-1659NW16386 INTERCHANGEABLE
Latch,hood,vehicular
Tld Wollard Llc
5355-01-141-713116386 INTERCHANGEABLE
Knob
Forenta Lp
3120-01-178-1867460657-001 INTERCHANGEABLE
Bearing,sleeve
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
3040-01-215-18493A3985 INTERCHANGEABLE
Bracket,eye,nonrotating Shaft
Link-Belt Cranes, L.p., Lllp
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
60-657 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
16386 International Light Metals Corp Sub of Martin Marietta Corp (USA)
PA5588 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
49089 Aluminum Co of America (USA)
QQA200-11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
3030-00-118-5441INTERCHANGEABLE
BELTS,V,MATCHED SET
5310-00-185-6345INTERCHANGEABLE
NUT,PLAIN,ROUND
5330-00-298-3762INTERCHANGEABLE
GASKET
4820-00-389-9270INTERCHANGEABLE
GUIDE,VALVE STEM
6665-00-490-2479INTERCHANGEABLE
COMBUSTIBLE GAS INDICATOR SET,PO
16386
5330-00-884-7682INTERCHANGEABLE
SEAL,PLAIN ENCASED
22492
2540-01-062-1659INTERCHANGEABLE
LATCH,HOOD,VEHICULAR
NW16386
5355-01-141-7131INTERCHANGEABLE
KNOB
16386
3120-01-178-1867INTERCHANGEABLE
BEARING,SLEEVE
460657-001
3040-01-215-1849INTERCHANGEABLE
BRACKET,EYE,NONROTATING SHAFT
3A3985
5975-01-233-3836INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
5340-01-249-4285INTERCHANGEABLE
BRACKET,ANGLE
60657

Frequently Asked Questions

What is NSN 9540-00-720-4663?

NSN 9540-00-720-4663 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 9540-00-720-4663?

NSN 9540-00-720-4663 has 8 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), 60-657 (Transtar Metals Corp), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), 16386 (International Light Metals Corp Sub of Martin Marietta Corp), PA5588 (Transtar Metals Corp) and 3 more.

What NSN replaces 9540-00-720-4663?

There are 12 known substitutes for 9540-00-720-4663: 3030-00-118-5441, 5310-00-185-6345, 5330-00-298-3762 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Basic Shape Style: ANGLE; Material: ALUMINUM ALLOY 7075; Heat Treatment: T-6 SOLUTION HEAT TREATED; Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN. 16 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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