PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66090Beam,structural

Aluminum Co of America · NSN 9540-00-402-0410 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-402-0410 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-402-0410. Primary manufacturer part number: 66090.
Features
  • Beam,structural — FSC 9540
  • Right Side Top Flange Thickness: 0.062 INCHES NOMINAL IN
  • Basic Shape Style: T SHAPE
  • Left Top Inside Angle: 90.0 DEGREES NOMINAL
  • Fabrication Method: EXTRUDED
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP
  • Left Side Top Flange Thickness: 0.062 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-402-0410, 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 Aluminum Co of America. Government technical data includes 21 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-402-0410
Primary Part Number66090
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusACTIVE
Right Side Top Flange Thickness0.062 INCHES NOMINAL IN
Basic Shape StyleT SHAPE
Left Top Inside Angle90.0 DEGREES NOMINAL
Fabrication MethodEXTRUDED
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
Left Side Top Flange Thickness0.062 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024
Right Side Top Flange Distance to Center of Both Flanges1.918 INCHES NOMINAL IN
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.125 INCHES NOMINAL IN
Nondefinitive Spec/std DataT8511 TEMPER
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Second Tip Relationship to First TipIDENTICAL
Heat TreatmentT-8511 SOLUTION HEAT TREATED
Right Top Inside Angle90.0 DEGREES NOMINAL
Weight Per Unit Measure0.430 POUNDS PER LINEAR FOOT LBS
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.125 INCHES NOMINAL IN
First Tip StyleSQUARE END
Leg Thickness0.062 INCHES NOMINAL IN
Left Side Top Flange Distance to Center of Both Flanges1.282 INCHES NOMINAL IN
Top Flange Width3.200 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5815-00-356-3450 INTERCHANGEABLE
Link Space Bar
2510-00-470-20786852 INTERCHANGEABLE
Shock Absorber,direct Action
Tenneco Inc
2530-00-471-8556F77885 INTERCHANGEABLE
Parts Kit,brake Shoe
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
9540-00-529-9342 INTERCHANGEABLE
Beam,structural
2835-00-596-6476710312 INTERCHANGEABLE
Lead Assembly
Unison Industries Llc
5950-00-934-280766090 INTERCHANGEABLE
Transformer,power
Power Paragon Inc Dba Air Borne Power Div Airborne Power
5340-01-165-15805086-3 INTERCHANGEABLE
Retainer,helical Compression Spr
Hydrasearch Company, Llc
5325-01-238-282766090 INTERCHANGEABLE
Ring,retaining
Dressta North America Ltd
5120-01-399-5612 INTERCHANGEABLE
Screwdriver,flat Tip
3455-01-647-026566090 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Keo Cutters Div of Masco Corp
Cross-Reference Index
Part NumberManufacturer
66090 Aluminum Co of America (USA)
PA19644 Transtar Metals Corp (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)
1M5258 The Boeing Company Div Defense (USA)
50863 International Light Metals Corp Sub of Martin Marietta Corp (USA)
60-1398 Transtar Metals Corp (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
Related Parts
5815-00-356-3450INTERCHANGEABLE
LINK SPACE BAR
2510-00-470-2078INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
6852
2530-00-471-8556INTERCHANGEABLE
PARTS KIT,BRAKE SHOE
F77885
9540-00-529-9342INTERCHANGEABLE
BEAM,STRUCTURAL
2835-00-596-6476INTERCHANGEABLE
LEAD ASSEMBLY
710312
5950-00-934-2807INTERCHANGEABLE
TRANSFORMER,POWER
66090
5340-01-165-1580INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
5086-3
5325-01-238-2827INTERCHANGEABLE
RING,RETAINING
66090
5120-01-399-5612INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
3455-01-647-0265INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
66090

Frequently Asked Questions

What is NSN 9540-00-402-0410?

NSN 9540-00-402-0410 is a Beam,structural, manufactured by Aluminum Co of America, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-402-0410?

NSN 9540-00-402-0410 has 8 cross-referenced part numbers: 66090 (Aluminum Co of America), PA19644 (Transtar Metals Corp), AMS-QQ-A-200/3 (Sae International Dba Sae International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), 1M5258 (The Boeing Company Div Defense) and 3 more.

What NSN replaces 9540-00-402-0410?

There are 10 known substitutes for 9540-00-402-0410: 5815-00-356-3450, 2510-00-470-2078, 2530-00-471-8556 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66090?

Key specifications for 66090: Right Side Top Flange Thickness: 0.062 INCHES NOMINAL IN; Basic Shape Style: T SHAPE; Left Top Inside Angle: 90.0 DEGREES NOMINAL; 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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