PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78ZAngle,structural

Aluminum Co of America · NSN 9540-00-197-9839 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-197-9839 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-197-9839. Primary manufacturer part number: 78Z.
Features
  • Angle,structural — FSC 9540
  • Left Side Flange Thickness: 0.250 INCHES NOMINAL IN
  • Left Side Flange Thickness: 0.250 INCHES NOMINAL IN
  • First Tip Radius: 0.094 INCHES NOMINAL IN
  • Left Inside Angle: 90.0 DEGREES NOMINAL
  • Weight Per Unit Measure: 0.530 POUNDS PER LINEAR FOOT LBS
  • Base Flange Thickness: 0.250 INCHES NOMINAL IN
  • Heat Treatment: T-6 SOLUTION HEAT TREATED
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-197-9839, 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 28 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-197-9839
Primary Part Number78Z
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusACTIVE
Left Side Flange Thickness0.250 INCHES NOMINAL IN
Left Side Flange Thickness0.250 INCHES NOMINAL IN
First Tip Radius0.094 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Weight Per Unit Measure0.530 POUNDS PER LINEAR FOOT LBS
Base Flange Thickness0.250 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED
MaterialALUMINUM ALLOY 6061
Base Flange Thickness0.250 INCHES NOMINAL IN
Nondefinitive Spec/std Data6061 ALLOY AND T6 TEMPER
First Tip Radius0.094 INCHES NOMINAL IN
Second Tip StyleUPPER RADIUS
Second Tip Radius0.094 INCHES NOMINAL IN
Material Document and ClassificationAMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
First Tip StyleRIGHT QUARTER RADIUS
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Weight Per Unit Measure0.530 POUNDS PER LINEAR FOOT LBS
Second Tip Radius0.094 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Second Tip Relationship to First TipNOT IDENTICAL
Basic Shape StyleANGLE
Second Tip Relationship to First TipNOT IDENTICAL
Basic Shape StyleANGLE
Nondefinitive Spec/std Data6061 ALLOY AND T6 TEMPER
Fabrication MethodEXTRUDED
MaterialALUMINUM ALLOY 6061
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
First Tip StyleRIGHT QUARTER RADIUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5985-00-022-738378BZ INTERCHANGEABLE
Line Section,radio Frequency Tra
Andrew Llc
9540-00-119-9022 INTERCHANGEABLE
Angle,structural
9540-00-542-2695 INTERCHANGEABLE
Angle,structural
9540-00-892-2350 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
78Z Aluminum Co of America (USA)
SAE-AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
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)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/8 Society of Automotive Engineers Inc (USA)
Related Parts
5985-00-022-7383INTERCHANGEABLE
LINE SECTION,RADIO FREQUENCY TRA
78BZ
9540-00-119-9022INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-542-2695INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-892-2350INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-197-9839?

NSN 9540-00-197-9839 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 9540-00-197-9839?

NSN 9540-00-197-9839 has 6 cross-referenced part numbers: 78Z (Aluminum Co of America), SAE-AMS-QQ-A-200/8 (Sae International Dba Sae International), AMS-QQ-A-200/8 (Sae International Dba Sae International), QQ-A-200/8 (Federal Specifications Promulgated by General Services Administration Washington DC), ASTM B221 (American Society for Testing and Materials Dba Astm International) and 1 more.

What NSN replaces 9540-00-197-9839?

There are 4 known substitutes for 9540-00-197-9839: 5985-00-022-7383, 9540-00-119-9022, 9540-00-542-2695 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 78Z?

Key specifications for 78Z: Left Side Flange Thickness: 0.250 INCHES NOMINAL IN; Left Side Flange Thickness: 0.250 INCHES NOMINAL IN; First Tip Radius: 0.094 INCHES NOMINAL IN; Overall Height: 1.000 INCHES NOMINAL IN. 30 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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