PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K10A69OAngle,structural

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 9540-01-071-6539 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-071-6539 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-071-6539. Primary manufacturer part number: K10A69O.
Features
  • Angle,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • Heat Treatment: O-ANNEALED
  • Material: ALUMINUM ALLOY 2024
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Base Flange Thickness: 0.094 INCHES NOMINAL IN
  • Weight Per Unit Measure: 0.274 POUNDS PER LINEAR FOOT LBS
  • Material Document and Classification: AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-01-071-6539, 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 Corporation Div Lockheed Martin Aeronautics Company. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-01-071-6539
Primary Part NumberK10A69O
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
Fabrication MethodEXTRUDED
Heat TreatmentO-ANNEALED
MaterialALUMINUM ALLOY 2024
Second Tip Relationship to First TipNOT IDENTICAL
Base Flange Thickness0.094 INCHES NOMINAL IN
Weight Per Unit Measure0.274 POUNDS PER LINEAR FOOT LBS
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
First Tip StyleRIGHT QUARTER RADIUS
Nondefinitive Spec/std Data2024 ALLOY AND ANNEALED CONDITION
Left Inside Angle90.0 DEGREES NOMINAL
Fillet Radius Where Left Flange Joins Base Flange0.156 INCHES NOMINAL IN
First Tip Radius0.094 INCHES NOMINAL IN
Left Side Flange Thickness0.094 INCHES NOMINAL IN
Second Tip StyleUPPER RADIUS
Second Tip Radius0.094 INCHES NOMINAL IN
Basic Shape StyleANGLE
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
9540-00-266-9099 INTERCHANGEABLE
Angle,structural
9540-00-486-6197 INTERCHANGEABLE
Angle,structural
9540-00-487-5731 INTERCHANGEABLE
Angle,structural
9540-00-720-1328HA400 INTERCHANGEABLE
Angle,structural
Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept
9540-00-973-9137 INTERCHANGEABLE
Angle,structural
9540-01-210-40101MA100D06-10068 INTERCHANGEABLE
Angle,structural
The Boeing Company Div Defense
9540-01-281-7226 INTERCHANGEABLE
Angle,structural
9540-01-299-7733 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
K10A69O Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
10134-1403 Transtar Metals Corp (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
9540PL1013460 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AND10134-1403/QQ-A-200/3-0 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
MS14284E153 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
AND10134-1403 Airforce-Navy Aeronautical Design Standard
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
Related Parts
9540-00-266-9099INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-486-6197INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-487-5731INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-720-1328INTERCHANGEABLE
ANGLE,STRUCTURAL
HA400
9540-00-973-9137INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-210-4010INTERCHANGEABLE
ANGLE,STRUCTURAL
1MA100D06-10068
9540-01-281-7226INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-299-7733INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-01-071-6539?

NSN 9540-01-071-6539 is a Angle,structural, manufactured by Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-01-071-6539?

NSN 9540-01-071-6539 has 10 cross-referenced part numbers: K10A69O (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 10134-1403 (Transtar Metals Corp), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), 9540PL1013460 (Jednolity Indeks Materialowy - Uniform Material Index), AND10134-1403/QQ-A-200/3-0 (Defense Logistics Agency Dba Defense Supply Center Philadelphia) and 5 more.

What NSN replaces 9540-01-071-6539?

There are 8 known substitutes for 9540-01-071-6539: 9540-00-266-9099, 9540-00-486-6197, 9540-00-487-5731 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K10A69O?

Key specifications for K10A69O: Fabrication Method: EXTRUDED; Heat Treatment: O-ANNEALED; Material: ALUMINUM ALLOY 2024; Second Tip Relationship to First Tip: NOT IDENTICAL. 19 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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