PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LS5183Beam,structural

Lockheed Martin Corp · NSN 9540-00-805-0451 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-805-0451 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-805-0451. Primary manufacturer part number: LS5183.
Features
  • Beam,structural — FSC 9540
  • Right Side Top Flange Thickness: 0.250 INCHES NOMINAL IN
  • First Tip Outer Radius: 0.031 INCHES NOMINAL IN
  • First Tip Inner Radius: 0.031 INCHES NOMINAL IN
  • Heat Treatment: T-6 SOLUTION HEAT TREATED AND ARTIFICALLY AGED
  • Fillet Radius Where Top Right Flange Joins Web Flange/leg: 0.120 INCHES NOMINAL IN
  • Leg Thickness: 0.310 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 7075
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-805-0451, 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 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN9540-00-805-0451
Primary Part NumberLS5183
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Right Side Top Flange Thickness0.250 INCHES NOMINAL IN
First Tip Outer Radius0.031 INCHES NOMINAL IN
First Tip Inner Radius0.031 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED AND ARTIFICALLY AGED
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.120 INCHES NOMINAL IN
Leg Thickness0.310 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 7075
Basic Shape StyleT SHAPE
Right Top Inside Angle90.0 DEGREES NOMINAL
Fabrication MethodEXTRUDED
Second Tip Relationship to First TipIDENTICAL
Right Side Top Flange Distance to Center of Both Flanges1.605 INCHES NOMINAL IN
Nondefinitive Spec/std DataT6 TEMPER
Material Document and ClassificationQQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Specification/standard Data81348-QQ-A-200/11 GOVERNMENT SPECIFICATION
Left Top Inside Angle90.0 DEGREES NOMINAL
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Top Flange Width3.210 INCHES NOMINAL IN
Left Side Top Flange Thickness0.250 INCHES NOMINAL IN
Left Side Top Flange Distance to Center of Both Flanges1.605 INCHES NOMINAL IN
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.120 INCHES NOMINAL IN
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Weight Per Unit Measure1.710 POUNDS PER LINEAR FOOT LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5365-00-033-2527 INTERCHANGEABLE
Shim
5306-00-163-039621616 INTERCHANGEABLE
Bolt,hook
Alfa Laval Inc
5340-00-254-464121616 INTERCHANGEABLE
Clevis,rod End
Dressta North America Ltd
4330-00-276-0048216-30 INTERCHANGEABLE
Bowl,sediment
Norgren C a Co
4720-00-908-7332216-16 INTERCHANGEABLE
Tubing,nonmetallic
Thomas Industries Inc Pneumotive Div
4720-01-411-393921616 INTERCHANGEABLE
Hose,preformed
Gates Corporation
9320-01-698-823521616 INTERCHANGEABLE
Rubber Strip
Vip Rubber Company, Inc. Dba Vip Rubber Co
Cross-Reference Index
Part NumberManufacturer
LS5183 Lockheed Martin Corp (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
21616 International Light Metals Corp Sub of Martin Marietta Corp (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
Related Parts
5365-00-033-2527INTERCHANGEABLE
SHIM
5306-00-163-0396INTERCHANGEABLE
BOLT,HOOK
21616
5340-00-254-4641INTERCHANGEABLE
CLEVIS,ROD END
21616
4330-00-276-0048INTERCHANGEABLE
BOWL,SEDIMENT
216-30
4720-00-908-7332INTERCHANGEABLE
TUBING,NONMETALLIC
216-16
4720-01-411-3939INTERCHANGEABLE
HOSE,PREFORMED
21616
9320-01-698-8235INTERCHANGEABLE
RUBBER STRIP
21616

Frequently Asked Questions

What is NSN 9540-00-805-0451?

NSN 9540-00-805-0451 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 9540-00-805-0451?

NSN 9540-00-805-0451 has 5 cross-referenced part numbers: LS5183 (Lockheed Martin Corp), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC), 21616 (International Light Metals Corp Sub of Martin Marietta Corp), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), AMS-QQ-A-200/11 (Sae International Dba Sae International).

What NSN replaces 9540-00-805-0451?

There are 7 known substitutes for 9540-00-805-0451: 5365-00-033-2527, 5306-00-163-0396, 5340-00-254-4641 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LS5183?

Key specifications for LS5183: Right Side Top Flange Thickness: 0.250 INCHES NOMINAL IN; First Tip Outer Radius: 0.031 INCHES NOMINAL IN; First Tip Inner Radius: 0.031 INCHES NOMINAL IN; Heat Treatment: T-6 SOLUTION HEAT TREATED AND ARTIFICALLY AGED. 25 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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