PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

HA373Angle,structural

Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept · NSN 9540-00-145-4513 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-145-4513 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-145-4513. Primary manufacturer part number: HA373.
Features
  • Angle,structural — FSC 9540
  • Left Inside Angle: 90.0 DEGREES NOMINAL
  • First Tip Radius: 0.125 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 2024 ALLOY AND T3511 TEMPER
  • Weight Per Unit Measure: 0.515 POUNDS PER LINEAR FOOT LBS
  • Basic Shape Style: ANGLE
  • Heat Treatment: T-3511 SOLUTION HEAT TREATED
  • Left Side Flange Thickness: 0.125 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-145-4513, 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 Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-145-4513
Primary Part NumberHA373
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerKaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept
StatusCANCELLED
Left Inside Angle90.0 DEGREES NOMINAL
First Tip Radius0.125 INCHES NOMINAL IN
Nondefinitive Spec/std Data2024 ALLOY AND T3511 TEMPER
Weight Per Unit Measure0.515 POUNDS PER LINEAR FOOT LBS
Basic Shape StyleANGLE
Heat TreatmentT-3511 SOLUTION HEAT TREATED
Left Side Flange Thickness0.125 INCHES NOMINAL IN
Base Flange Thickness0.125 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.250 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
First Tip StyleRIGHT QUARTER RADIUS
Second Tip StyleUPPER RADIUS
Second Tip Radius0.125 INCHES NOMINAL IN
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
MaterialALUMINUM ALLOY 2024
Second Tip Relationship to First TipNOT IDENTICAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
9540-00-140-4977 INTERCHANGEABLE
Angle,structural
3110-00-232-81906009 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3455-00-236-071620094 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
9540-00-251-263360-4046 INTERCHANGEABLE
Angle,structural
Transtar Metals Corp
6610-00-570-027021356 INTERCHANGEABLE
Valve,overpressure
Aerosonic Llc
9540-01-299-7729 INTERCHANGEABLE
Angle,structural
5315-01-628-69862135-6 INTERCHANGEABLE
Key,machine
Edro Corporation, the Dba Edro Corp
Cross-Reference Index
Part NumberManufacturer
HA373 Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept (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)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
2-1356 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
10140 Reynolds Metals Co (USA)
1047872 The Boeing Company (USA)
AND10133-1602 Airforce-Navy Aeronautical Design Standard
1047872 The Boeing Company (USA)
Related Parts
9540-00-140-4977INTERCHANGEABLE
ANGLE,STRUCTURAL
3110-00-232-8190INTERCHANGEABLE
BEARING,BALL,ANNULAR
6009
3455-00-236-0716INTERCHANGEABLE
REAMER,MACHINE
20094
9540-00-251-2633INTERCHANGEABLE
ANGLE,STRUCTURAL
60-4046
6610-00-570-0270INTERCHANGEABLE
VALVE,OVERPRESSURE
21356
9540-01-299-7729INTERCHANGEABLE
ANGLE,STRUCTURAL
5315-01-628-6986INTERCHANGEABLE
KEY,MACHINE
2135-6

Frequently Asked Questions

What is NSN 9540-00-145-4513?

NSN 9540-00-145-4513 is a Angle,structural, manufactured by Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-145-4513?

NSN 9540-00-145-4513 has 10 cross-referenced part numbers: HA373 (Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept), ASTM B221 (American Society for Testing and Materials Dba Astm International), AMS-QQ-A-200/3 (Sae International Dba Sae International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc) and 5 more.

What NSN replaces 9540-00-145-4513?

There are 7 known substitutes for 9540-00-145-4513: 9540-00-140-4977, 3110-00-232-8190, 3455-00-236-0716 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of HA373?

Key specifications for HA373: Left Inside Angle: 90.0 DEGREES NOMINAL; Overall Width: 1.750 INCHES NOMINAL IN; First Tip Radius: 0.125 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 2024 ALLOY AND T3511 TEMPER. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-145-4513 still in active supply?

NSN 9540-00-145-4513 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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