PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Beam,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-954-9687 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-954-9687 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-954-9687. Primary manufacturer part number: ASTM B221.
Features
  • Beam,structural — FSC 9540
  • Left Side Top Flange Thickness: 0.064 INCHES NOMINAL IN
  • Right Side Top Flange Distance to Center of Both Flanges: 1.313 INCHES NOMINAL IN
  • Second Tip Relationship to First Tip: IDENTICAL
  • Fabrication Method: EXTRUDED
  • Material: ALUMINUM ALLOY 2024
  • Left Side Top Flange Distance to Center of Both Flanges: 1.312 INCHES NOMINAL IN
  • Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-954-9687, 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 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-954-9687
Primary Part NumberASTM B221
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Left Side Top Flange Thickness0.064 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges1.313 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
Fabrication MethodEXTRUDED
MaterialALUMINUM ALLOY 2024
Left Side Top Flange Distance to Center of Both Flanges1.312 INCHES NOMINAL IN
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
Right Top Inside Angle90.0 DEGREES NOMINAL
Nondefinitive Spec/std Data2024 ALLOY AND T4 TEMPER AND T3511 TEMPER
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
First Tip StyleSQUARE END
Leg Thickness0.064 INCHES NOMINAL IN
Right Side Top Flange Thickness0.064 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Top Flange Width2.625 INCHES NOMINAL IN
Basic Shape StyleT SHAPE
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.063 INCHES NOMINAL IN
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.063 INCHES NOMINAL IN
Weight Per Unit Measure0.370 POUNDS PER LINEAR FOOT LBS
Left Top Inside Angle90.0 DEGREES NOMINAL
Heat TreatmentT-4 SOLUTION HEAT TREATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5996-00-369-5265606452 INTERCHANGEABLE
Amplifier Subassembly
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5815-00-718-6144 INTERCHANGEABLE
Type Bar,teletypewr
9540-00-954-0738 INTERCHANGEABLE
Beam,structural
5330-01-126-349062248 INTERCHANGEABLE
Gasket
Waterous Company
5950-01-151-4313TW62248 INTERCHANGEABLE
Transformer,power
Magnetika
5995-01-710-313560645-2 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Midcon Cables Co., Inc.
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
62248 Aluminum Co of America (USA)
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
PA18851 Transtar Metals Corp (USA)
60-11170 Transtar Metals Corp (USA)
89V1074 Northrop Grumman Systems Corporation (USA)
60-6452 Transtar Metals Corp (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
Related Parts
5996-00-369-5265INTERCHANGEABLE
AMPLIFIER SUBASSEMBLY
606452
5815-00-718-6144INTERCHANGEABLE
TYPE BAR,TELETYPEWR
9540-00-954-0738INTERCHANGEABLE
BEAM,STRUCTURAL
5330-01-126-3490INTERCHANGEABLE
GASKET
62248
5950-01-151-4313INTERCHANGEABLE
TRANSFORMER,POWER
TW62248
5995-01-710-3135INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
60645-2

Frequently Asked Questions

What is NSN 9540-00-954-9687?

NSN 9540-00-954-9687 is a Beam,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 9540-00-954-9687?

NSN 9540-00-954-9687 has 9 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), 62248 (Aluminum Co of America), AMS-QQ-A-200/3 (Sae International Dba Sae International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), PA18851 (Transtar Metals Corp) and 4 more.

What NSN replaces 9540-00-954-9687?

There are 6 known substitutes for 9540-00-954-9687: 5996-00-369-5265, 5815-00-718-6144, 9540-00-954-0738 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Left Side Top Flange Thickness: 0.064 INCHES NOMINAL IN; Right Side Top Flange Distance to Center of Both Flanges: 1.313 INCHES NOMINAL IN; Second Tip Relationship to First Tip: IDENTICAL; Fabrication Method: EXTRUDED. 22 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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