PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1238984Angle,structural

The Boeing Company · NSN 9540-00-145-4524 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-145-4524 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-145-4524. Primary manufacturer part number: 1238984.
Features
  • Angle,structural — FSC 9540
  • Weight Per Unit Measure: 0.150 POUNDS PER LINEAR FOOT LBS
  • Base Flange Thickness: 0.063 INCHES NOMINAL IN
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Second Tip Style: UPPER RADIUS
  • Material Document and Classification: QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE
  • Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN
  • First Tip Radius: 0.063 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-145-4524, 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 The Boeing Company. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-145-4524
Primary Part Number1238984
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerThe Boeing Company
StatusCANCELLED
Weight Per Unit Measure0.150 POUNDS PER LINEAR FOOT LBS
Base Flange Thickness0.063 INCHES NOMINAL IN
Second Tip Relationship to First TipNOT IDENTICAL
Second Tip StyleUPPER RADIUS
Material Document and ClassificationQQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
First Tip Radius0.063 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Left Side Flange Thickness0.063 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Heat TreatmentT-4 SOLUTION HEAT TREATED
Nondefinitive Spec/std DataT4 TEMPER
First Tip StyleRIGHT QUARTER RADIUS
Second Tip Radius0.063 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024
Basic Shape StyleANGLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9540-00-185-3995 INTERCHANGEABLE
Angle,structural
2940-00-374-7376S78 INTERCHANGEABLE
Air Cleaner,intake
Vortox Company
5331-00-514-48041JH4350REVCPC INTERCHANGEABLE
O-Ring
Westinghouse Electric Corp
9540-01-071-5885 INTERCHANGEABLE
Angle,structural
9540-01-071-7367 INTERCHANGEABLE
Angle,structural
3455-01-080-96611745-1250 INTERCHANGEABLE
Cutter,milling,end
New York Twist Drill Inc
9540-01-166-6927 INTERCHANGEABLE
Angle,structural
9540-01-213-8523 INTERCHANGEABLE
Angle,structural
4210-01-263-0920MODEL 1,2-1/2X2-1/2,ROCKER LUGS INTERCHANGEABLE
Siamese Connection,fire Hose
Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
9540-01-281-7228 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
1238984 The Boeing Company (USA)
AND10134-1201 Airforce-Navy Aeronautical Design Standard
S78 Textron Aviation Inc (USA)
S78 Cessna Aircraft Company Dba Textron Aviation (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
LS10134-1201-1 Lockheed Martin Corp (USA)
1238984 The Boeing Company (USA)
Related Parts
9540-00-185-3995INTERCHANGEABLE
ANGLE,STRUCTURAL
2940-00-374-7376INTERCHANGEABLE
AIR CLEANER,INTAKE
S78
5331-00-514-4804INTERCHANGEABLE
O-RING
1JH4350REVCPC
9540-01-071-5885INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-071-7367INTERCHANGEABLE
ANGLE,STRUCTURAL
3455-01-080-9661INTERCHANGEABLE
CUTTER,MILLING,END
1745-1250
9540-01-166-6927INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-213-8523INTERCHANGEABLE
ANGLE,STRUCTURAL
4210-01-263-0920INTERCHANGEABLE
SIAMESE CONNECTION,FIRE HOSE
MODEL 1,2-1/2X2-1/2,ROCKER LUGS
9540-01-281-7228INTERCHANGEABLE
ANGLE,STRUCTURAL
6140-01-281-8855INTERCHANGEABLE
BATTERY,STORAGE
S78
7025-01-561-7159INTERCHANGEABLE
PROCESSOR,FILE SERVER
S78

Frequently Asked Questions

What is NSN 9540-00-145-4524?

NSN 9540-00-145-4524 is a Angle,structural, manufactured by The Boeing Company, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-145-4524?

NSN 9540-00-145-4524 has 7 cross-referenced part numbers: 1238984 (The Boeing Company), AND10134-1201 (Airforce-Navy Aeronautical Design Standard), S78 (Textron Aviation Inc), S78 (Cessna Aircraft Company Dba Textron Aviation), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 9540-00-145-4524?

There are 12 known substitutes for 9540-00-145-4524: 9540-00-185-3995, 2940-00-374-7376, 5331-00-514-4804 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1238984?

Key specifications for 1238984: Weight Per Unit Measure: 0.150 POUNDS PER LINEAR FOOT LBS; Base Flange Thickness: 0.063 INCHES NOMINAL IN; Second Tip Relationship to First Tip: NOT IDENTICAL; Second Tip Style: UPPER RADIUS. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-145-4524 still in active supply?

NSN 9540-00-145-4524 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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