PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K10B99T6511Angle,structural

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 9540-01-071-3506 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-071-3506 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-071-3506. Primary manufacturer part number: K10B99T6511.
Features
  • Angle,structural — FSC 9540
  • First Tip Style: RIGHT QUARTER RADIUS
  • Base Flange Thickness: 0.125 INCHES NOMINAL IN
  • Weight Per Unit Measure: 0.360 POUNDS PER LINEAR FOOT LBS
  • Basic Shape Style: ANGLE
  • Second Tip Radius: 0.125 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 6061
  • Heat Treatment: T-6511 SOLUTION HEAT TREATED
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-01-071-3506, 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 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-01-071-3506
Primary Part NumberK10B99T6511
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
First Tip StyleRIGHT QUARTER RADIUS
Base Flange Thickness0.125 INCHES NOMINAL IN
Weight Per Unit Measure0.360 POUNDS PER LINEAR FOOT LBS
Basic Shape StyleANGLE
Second Tip Radius0.125 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 6061
Heat TreatmentT-6511 SOLUTION HEAT TREATED
Second Tip StyleUPPER RADIUS
Nondefinitive Spec/std DataT6511 TEMPER
Material Document and ClassificationAMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
Second Tip Relationship to First TipNOT IDENTICAL
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Left Inside Angle90.0 DEGREES NOMINAL
Left Side Flange Thickness0.125 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.188 INCHES NOMINAL IN
First Tip Radius0.125 INCHES NOMINAL IN
Fabrication MethodEXTRUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
9540-00-145-8399 INTERCHANGEABLE
Angle,structural
9540-00-184-2801 INTERCHANGEABLE
Angle,structural
9540-00-197-9840 INTERCHANGEABLE
Angle,structural
9540-00-542-2696 INTERCHANGEABLE
Angle,structural
9540-00-933-9651 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
K10B99T6511 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
AMS-QQ-A-200/8 Society of Automotive Engineers Inc (USA)
SAE-AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
AND10133-1203 Airforce-Navy Aeronautical Design Standard
AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
QQ-A-200/8 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
9540-00-145-8399INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-184-2801INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-197-9840INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-542-2696INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-933-9651INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-01-071-3506?

NSN 9540-01-071-3506 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 9540-01-071-3506?

NSN 9540-01-071-3506 has 6 cross-referenced part numbers: K10B99T6511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), AMS-QQ-A-200/8 (Society of Automotive Engineers Inc), SAE-AMS-QQ-A-200/8 (Sae International Dba Sae International), AND10133-1203 (Airforce-Navy Aeronautical Design Standard), AMS-QQ-A-200/8 (Sae International Dba Sae International) and 1 more.

What NSN replaces 9540-01-071-3506?

There are 5 known substitutes for 9540-01-071-3506: 9540-00-145-8399, 9540-00-184-2801, 9540-00-197-9840 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K10B99T6511?

Key specifications for K10B99T6511: First Tip Style: RIGHT QUARTER RADIUS; Base Flange Thickness: 0.125 INCHES NOMINAL IN; Overall Height: 1.250 INCHES NOMINAL IN; Weight Per Unit Measure: 0.360 POUNDS PER LINEAR FOOT LBS. 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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