PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31780Angle,structural

Aluminum Co of America · NSN 9540-00-596-2842 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-596-2842 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-596-2842. Primary manufacturer part number: 31780.
Features
  • Angle,structural — FSC 9540
  • Fillet Radius Where Left Flange Joins Base Flange: 0.060 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2024
  • Second Tip Relationship to First Tip: IDENTICAL
  • Heat Treatment: T-4 SOLUTION HEAT TREATED OR T-3511 SOLUTION HEAT TREATED
  • Material Document and Classification: AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
  • Weight Per Unit Measure: 0.160 POUNDS PER LINEAR FOOT LBS
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-596-2842, 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 Aluminum Co of America. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-596-2842
Primary Part Number31780
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusCANCELLED
Fillet Radius Where Left Flange Joins Base Flange0.060 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024
Second Tip Relationship to First TipIDENTICAL
Heat TreatmentT-4 SOLUTION HEAT TREATED OR T-3511 SOLUTION HEAT TREATED
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Weight Per Unit Measure0.160 POUNDS PER LINEAR FOOT LBS
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
First Tip StyleSQUARE END
Fabrication MethodEXTRUDED
Nondefinitive Spec/std Data2024 ALLOY AND T4 TEMPER OR T3511 TEMPER
Basic Shape StyleANGLE
Left Inside Angle90.0 DEGREES NOMINAL
Base Flange Thickness0.064 INCHES NOMINAL IN
Left Side Flange Thickness0.094 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
9540-00-006-8466 INTERCHANGEABLE
Angle,structural
5340-00-435-8633C00309 INTERCHANGEABLE
Clamp,loop
Kickhaefer Manufacturing Company, Llc Dba Kickhaefer Manufacturing Co
5930-00-538-0754 INTERCHANGEABLE
Switch,rotary
2925-00-771-716160886 INTERCHANGEABLE
Belt,generator
Textron Lycoming Inc Williamsport Plant
4320-01-253-0931 INTERCHANGEABLE
Pump,centrifugal
Cross-Reference Index
Part NumberManufacturer
31780 Aluminum Co of America (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
LS1174 Lockheed Martin Corp (USA)
PA1020 Transtar Metals Corp (USA)
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
60-886 Transtar Metals Corp (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
Related Parts
9540-00-006-8466INTERCHANGEABLE
ANGLE,STRUCTURAL
5340-00-435-8633INTERCHANGEABLE
CLAMP,LOOP
C00309
5930-00-538-0754INTERCHANGEABLE
SWITCH,ROTARY
2925-00-771-7161INTERCHANGEABLE
BELT,GENERATOR
60886
4320-01-253-0931INTERCHANGEABLE
PUMP,CENTRIFUGAL

Frequently Asked Questions

What is NSN 9540-00-596-2842?

NSN 9540-00-596-2842 is a Angle,structural, manufactured by Aluminum Co of America, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-596-2842?

NSN 9540-00-596-2842 has 8 cross-referenced part numbers: 31780 (Aluminum Co of America), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), LS1174 (Lockheed Martin Corp), PA1020 (Transtar Metals Corp), AMS-QQ-A-200/3 (Sae International Dba Sae International) and 3 more.

What NSN replaces 9540-00-596-2842?

There are 5 known substitutes for 9540-00-596-2842: 9540-00-006-8466, 5340-00-435-8633, 5930-00-538-0754 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31780?

Key specifications for 31780: Fillet Radius Where Left Flange Joins Base Flange: 0.060 INCHES NOMINAL IN; Overall Width: 1.000 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2024; Second Tip Relationship to First Tip: IDENTICAL. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-596-2842 still in active supply?

NSN 9540-00-596-2842 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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