PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

DIE78YAngle,structural

Aluminum Co of America · NSN 9540-00-251-2568 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-251-2568 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-251-2568. Primary manufacturer part number: DIE78Y.
Features
  • Angle,structural — FSC 9540
  • Heat Treatment: T-3511 SOLUTION HEAT TREATED
  • Fabrication Method: EXTRUDED
  • Fillet Radius Where Left Flange Joins Base Flange: 0.093 INCHES NOMINAL IN
  • First Tip Style: RIGHT QUARTER RADIUS
  • Material: ALUMINUM ALLOY 2024
  • Nondefinitive Spec/std Data: 2024 ALLOY AND T3511 TEMPER
  • Weight Per Unit Measure: 0.270 POUNDS PER LINEAR FOOT LBS
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-251-2568, 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 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-251-2568
Primary Part NumberDIE78Y
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusACTIVE
Heat TreatmentT-3511 SOLUTION HEAT TREATED
Fabrication MethodEXTRUDED
Fillet Radius Where Left Flange Joins Base Flange0.093 INCHES NOMINAL IN
First Tip StyleRIGHT QUARTER RADIUS
MaterialALUMINUM ALLOY 2024
Nondefinitive Spec/std Data2024 ALLOY AND T3511 TEMPER
Weight Per Unit Measure0.270 POUNDS PER LINEAR FOOT LBS
Basic Shape StyleANGLE
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
First Tip Radius0.047 INCHES NOMINAL IN
Base Flange Thickness0.093 INCHES NOMINAL IN
Second Tip Relationship to First TipNOT IDENTICAL
Second Tip StyleUPPER RADIUS
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Left Inside Angle90.0 DEGREES NOMINAL
Left Side Flange Thickness0.093 INCHES NOMINAL IN
Second Tip Radius0.047 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5999-00-083-55372382 INTERCHANGEABLE
Contact,electrical
Entron Industries Limited Partnership Dba Entron Industries Property Div
5310-00-193-75332382 INTERCHANGEABLE
Washer,lock
Lucent Technologies Inc Corporate Headquarters
6685-00-242-2224TYPE 12F-86 INTERCHANGEABLE
Thermometer,self-Indicating
American Society for Testing and Materials Dba Astm International
9540-00-287-9421 INTERCHANGEABLE
Channel,structural
5915-00-914-17712382 INTERCHANGEABLE
Filter,band Pass
Torotel, Inc. Div Torotel Products, Inc.
4820-01-011-40652382-1/2 INTERCHANGEABLE
Valve,gate
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
5985-01-056-638913057603-2 INTERCHANGEABLE
Attenuator,fixed
Us Army Aviation and Missile Command
5998-01-135-9140 INTERCHANGEABLE
Circuit Card Assembly
5310-01-136-3553 INTERCHANGEABLE
Nut,sleeve
6530-01-548-4422ALOKOEM4X7 INTERCHANGEABLE
Pouch,waterproof
Loksak, Inc. Dba Loksak Inc
Cross-Reference Index
Part NumberManufacturer
DIE78Y Aluminum Co of America (USA)
LS3257 Lockheed Martin Corp (USA)
1M127 The Boeing Company Div Defense (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
CVC1950 Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
BAC1503-4162 The Boeing Company Div Legacy Wichita (USA)
2382 Reynolds Metals Co (USA)
Related Parts
5999-00-083-5537INTERCHANGEABLE
CONTACT,ELECTRICAL
2382
5310-00-193-7533INTERCHANGEABLE
WASHER,LOCK
2382
6685-00-242-2224INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
TYPE 12F-86
9540-00-287-9421INTERCHANGEABLE
CHANNEL,STRUCTURAL
5915-00-914-1771INTERCHANGEABLE
FILTER,BAND PASS
2382
4820-01-011-4065INTERCHANGEABLE
VALVE,GATE
2382-1/2
5985-01-056-6389INTERCHANGEABLE
ATTENUATOR,FIXED
13057603-2
5998-01-135-9140INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5310-01-136-3553INTERCHANGEABLE
NUT,SLEEVE
6530-01-548-4422INTERCHANGEABLE
POUCH,WATERPROOF
ALOKOEM4X7

Frequently Asked Questions

What is NSN 9540-00-251-2568?

NSN 9540-00-251-2568 is a Angle,structural, manufactured by Aluminum Co of America, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-251-2568?

NSN 9540-00-251-2568 has 10 cross-referenced part numbers: DIE78Y (Aluminum Co of America), LS3257 (Lockheed Martin Corp), 1M127 (The Boeing Company Div Defense), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc), CVC1950 (Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division) and 5 more.

What NSN replaces 9540-00-251-2568?

There are 10 known substitutes for 9540-00-251-2568: 5999-00-083-5537, 5310-00-193-7533, 6685-00-242-2224 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of DIE78Y?

Key specifications for DIE78Y: Heat Treatment: T-3511 SOLUTION HEAT TREATED; Fabrication Method: EXTRUDED; Fillet Radius Where Left Flange Joins Base Flange: 0.093 INCHES NOMINAL IN; First Tip Style: RIGHT QUARTER RADIUS. 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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