PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K10A42T8511Angle,structural

Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company · NSN 9540-01-072-0173 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-01-072-0173 — this item is cataloged by the U.S. Government under National Stock Number 9540-01-072-0173. Primary manufacturer part number: K10A42T8511.
Features
  • Angle,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • First Tip Style: SQUARE END
  • Material: ALUMINUM ALLOY 2024
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Specification/standard Data: 81755-K10 MANUFACTURERS STANDARD
  • Weight Per Unit Measure: 0.268 POUNDS PER LINEAR FOOT LBS
  • Left Side Flange Thickness: 0.064 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-01-072-0173, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-01-072-0173
Primary Part NumberK10A42T8511
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Lockheed Martin Aeronautics Company
StatusACTIVE
Fabrication MethodEXTRUDED
First Tip StyleSQUARE END
MaterialALUMINUM ALLOY 2024
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Specification/standard Data81755-K10 MANUFACTURERS STANDARD
Weight Per Unit Measure0.268 POUNDS PER LINEAR FOOT LBS
Left Side Flange Thickness0.064 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Nondefinitive Spec/std Data2024 ALLOY AND T8511 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
Left Inside Angle90.0 DEGREES NOMINAL
Basic Shape StyleANGLE
Base Flange Thickness0.064 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-031-785710663 INTERCHANGEABLE
Diaphragm,pressure Switch
Avox Systems Inc Dba Avox Systems Inc
9540-00-149-6344 INTERCHANGEABLE
Angle,structural
5950-00-154-0101 INTERCHANGEABLE
Transformer,power
9540-00-237-9537 INTERCHANGEABLE
Angle,structural
5950-00-645-502923687 INTERCHANGEABLE
Transformer,power
Freed Transformer Co
5945-00-691-498922637 INTERCHANGEABLE
Shell,solenoid
Hydro-Aire Aerospace Corp
5950-00-735-9185 INTERCHANGEABLE
Transformer,power
5365-00-801-477910663 INTERCHANGEABLE
Shim
Rexnord Industries, Llc Div Couplings Division
9540-01-071-4718 INTERCHANGEABLE
Angle,structural
6510-01-093-546423275-470 INTERCHANGEABLE
Sponge,surgical
Becton, Dickinson and Co Dba Becton Dickinson & Co
Cross-Reference Index
Part NumberManufacturer
K10A42T8511 PRIMARY Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
23687 Alcoa/reynolds Metals Company (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
9540PL0871854 Jednolity Indeks Materialowy - Uniform Material Index (POL)
9540PL1820468 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS14284E235 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
10663 Pimalco Inc. Div Alcoa Inc Global Hard Alloy Extrusions (USA)
8-10890 Universal Alloy Corporation Div Universal Alloy Corp (USA)
22637 Aluminum Co of America (USA)
60-2654 Transtar Metals Corp (USA)
Related Parts
5930-00-031-7857INTERCHANGEABLE
DIAPHRAGM,PRESSURE SWITCH
10663
9540-00-149-6344INTERCHANGEABLE
ANGLE,STRUCTURAL
5950-00-154-0101INTERCHANGEABLE
TRANSFORMER,POWER
9540-00-237-9537INTERCHANGEABLE
ANGLE,STRUCTURAL
5950-00-645-5029INTERCHANGEABLE
TRANSFORMER,POWER
23687
5945-00-691-4989INTERCHANGEABLE
SHELL,SOLENOID
22637
5950-00-735-9185INTERCHANGEABLE
TRANSFORMER,POWER
5365-00-801-4779INTERCHANGEABLE
SHIM
10663
9540-01-071-4718INTERCHANGEABLE
ANGLE,STRUCTURAL
6510-01-093-5464INTERCHANGEABLE
SPONGE,SURGICAL
23275-470
4710-01-109-8106INTERCHANGEABLE
TUBING,NONMETALLIC
EEP160TP5/8X6 7/8
6220-01-235-0734INTERCHANGEABLE
LENS,LIGHT
AR72257

Frequently Asked Questions

What is NSN 9540-01-072-0173?

NSN 9540-01-072-0173 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 9540-01-072-0173?

NSN 9540-01-072-0173 has 13 cross-referenced part numbers: K10A42T8511 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 23687 (Alcoa/reynolds Metals Company), ASTM B221 (American Society for Testing and Materials Dba Astm International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), 9540PL0871854 (Jednolity Indeks Materialowy - Uniform Material Index) and 8 more.

What NSN replaces 9540-01-072-0173?

There are 12 known substitutes for 9540-01-072-0173: 5930-00-031-7857, 9540-00-149-6344, 5950-00-154-0101 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K10A42T8511?

Key specifications for K10A42T8511: Fabrication Method: EXTRUDED; First Tip Style: SQUARE END; Material: ALUMINUM ALLOY 2024; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT. 17 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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