PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LS5326Beam,structural

Lockheed Martin Corp · NSN 9540-00-452-2089 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-452-2089 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-452-2089. Primary manufacturer part number: LS5326.
Features
  • Beam,structural — FSC 9540
  • Heat Treatment: T-6 SOLUTION HEAT TREATED
  • Material: ALUMINUM ALLOY 7075
  • Fabrication Method: EXTRUDED
  • Top Flange Width: 3.100 INCHES NOMINAL IN
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Right Top Inside Angle: 90.0 DEGREES NOMINAL
  • Basic Shape Style: T SHAPE
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-452-2089, 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 Lockheed Martin Corp. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-452-2089
Primary Part NumberLS5326
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Heat TreatmentT-6 SOLUTION HEAT TREATED
MaterialALUMINUM ALLOY 7075
Fabrication MethodEXTRUDED
Top Flange Width3.100 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Right Top Inside Angle90.0 DEGREES NOMINAL
Basic Shape StyleT SHAPE
Right Side Top Flange Thickness0.094 INCHES NOMINAL IN
Weight Per Unit Measure0.292 POUNDS PER LINEAR FOOT LBS
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.094 INCHES NOMINAL IN
Left Side Top Flange Distance to Center of Both Flanges1.550 INCHES NOMINAL IN
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std DataT6 TEMPER
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
Left Side Top Flange Thickness0.094 INCHES NOMINAL IN
Left Top Inside Angle90.0 DEGREES NOMINAL
Leg Thickness0.094 INCHES NOMINAL IN
First Tip StyleSQUARE END
Second Tip Relationship to First TipIDENTICAL
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.094 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges1.550 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5305-00-225-384312569621-66 INTERCHANGEABLE
Screw,cap,hexagon Head
U S Army Tank Automotive Command Amsta-Im-Mm
5330-00-285-134665X549 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
4935-00-507-062350055 INTERCHANGEABLE
Hood,missile Cooling
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
5945-00-820-02959274-4104 INTERCHANGEABLE
Relay,electromagnetic
Leach International Corp Div Leach International Corporation
6680-01-200-252950055 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
6850-01-467-133750055 INTERCHANGEABLE
Cleaning Compound,solvent
Environmental Safety Investigations, Inc
5999-01-505-344650055 INTERCHANGEABLE
Strip,electrical Grounding
Applied Companies
Cross-Reference Index
Part NumberManufacturer
LS5326 Lockheed Martin Corp (USA)
9540PL1808992 Jednolity Indeks Materialowy - Uniform Material Index (POL)
T2189 Howmet Corporation Dba Alcoa Howmet, Whitehall, Casting Operations (USA)
DIE LS 5326 Lockheed Martin Corp (USA)
50055 International Light Metals Corp Sub of Martin Marietta Corp (USA)
60-2148 Transtar Metals Corp (USA)
PA18359 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5305-00-225-3843INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
12569621-66
5330-00-285-1346INTERCHANGEABLE
SEAL,PLAIN ENCASED
65X549
4935-00-507-0623INTERCHANGEABLE
HOOD,MISSILE COOLING
50055
5945-00-820-0295INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
9274-4104
6680-01-200-2529INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
50055
6850-01-467-1337INTERCHANGEABLE
CLEANING COMPOUND,SOLVENT
50055
5999-01-505-3446INTERCHANGEABLE
STRIP,ELECTRICAL GROUNDING
50055

Frequently Asked Questions

What is NSN 9540-00-452-2089?

NSN 9540-00-452-2089 is a Beam,structural, manufactured by Lockheed Martin Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-452-2089?

NSN 9540-00-452-2089 has 9 cross-referenced part numbers: LS5326 (Lockheed Martin Corp), 9540PL1808992 (Jednolity Indeks Materialowy - Uniform Material Index), T2189 (Howmet Corporation Dba Alcoa Howmet, Whitehall, Casting Operations), DIE LS 5326 (Lockheed Martin Corp), 50055 (International Light Metals Corp Sub of Martin Marietta Corp) and 4 more.

What NSN replaces 9540-00-452-2089?

There are 7 known substitutes for 9540-00-452-2089: 5305-00-225-3843, 5330-00-285-1346, 4935-00-507-0623 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LS5326?

Key specifications for LS5326: Overall Height: 1.500 INCHES NOMINAL IN; Heat Treatment: T-6 SOLUTION HEAT TREATED; Material: ALUMINUM ALLOY 7075; 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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