PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

78MAngle,structural

Aluminum Co of America · NSN 9540-00-148-4299 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-148-4299 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-148-4299. Primary manufacturer part number: 78M.
Features
  • Angle,structural — FSC 9540
  • Nondefinitive Spec/std Data: 7075 ALLOY AND T6 TEMPER
  • Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN
  • Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
  • Base Flange Thickness: 0.188 INCHES NOMINAL IN
  • Second Tip Radius: 0.094 INCHES NOMINAL IN
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-148-4299, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-148-4299
Primary Part Number78M
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusACTIVE
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Base Flange Thickness0.188 INCHES NOMINAL IN
Second Tip Radius0.094 INCHES NOMINAL IN
Second Tip Relationship to First TipNOT IDENTICAL
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Basic Shape StyleANGLE
Second Tip StyleUPPER RADIUS
Left Inside Angle90.0 DEGREES NOMINAL
First Tip Radius0.094 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 7075
Weight Per Unit Measure0.410 POUNDS PER LINEAR FOOT LBS
First Tip StyleRIGHT QUARTER RADIUS
Heat TreatmentT-6 SOLUTION HEAT TREATED
Left Side Flange Thickness0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-079-72370400-0009 INTERCHANGEABLE
Grommet,nonmetallic
Keysight Technologies Inc
4820-00-087-8451 INTERCHANGEABLE
Valve,check
5999-00-102-7450 INTERCHANGEABLE
Delay Line
9540-00-148-4298 INTERCHANGEABLE
Angle,structural
5210-00-243-210052-470-160 INTERCHANGEABLE
Gage,thread Cutting Tool
Fred V. Fowler Company, L.l.c.
5935-00-244-822950-011-0029 INTERCHANGEABLE
Connector,plug,electrical
Itt Cannon Rf Products
2920-00-361-82852-145 INTERCHANGEABLE
Spring
Precision Aerospace Corporation Dba Precision Engine Control
6640-00-368-676628014-10 INTERCHANGEABLE
Flask,volumetric
Kimble Glass Inc Sub of Owens-Illinois Inc
5360-00-397-4606 INTERCHANGEABLE
Spring,spiral,torsion
6640-00-425-50002801750 INTERCHANGEABLE
Flask,volumetric
Gerresheimer Glass Inc Div Gerresheimer Glass
Cross-Reference Index
Part NumberManufacturer
78M Aluminum Co of America (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
2-145 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
5640 Alcoa/reynolds Metals Company (USA)
BAC1503-2735 The Boeing Company Div Legacy Wichita (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
Related Parts
5325-00-079-7237INTERCHANGEABLE
GROMMET,NONMETALLIC
0400-0009
4820-00-087-8451INTERCHANGEABLE
VALVE,CHECK
5999-00-102-7450INTERCHANGEABLE
DELAY LINE
9540-00-148-4298INTERCHANGEABLE
ANGLE,STRUCTURAL
5210-00-243-2100INTERCHANGEABLE
GAGE,THREAD CUTTING TOOL
52-470-160
5935-00-244-8229INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
50-011-0029
2920-00-361-8285INTERCHANGEABLE
SPRING
2-145
6640-00-368-6766INTERCHANGEABLE
FLASK,VOLUMETRIC
28014-10
5360-00-397-4606INTERCHANGEABLE
SPRING,SPIRAL,TORSION
6640-00-425-5000INTERCHANGEABLE
FLASK,VOLUMETRIC
2801750
6640-00-425-6000INTERCHANGEABLE
FLASK,VOLUMETRIC
6640-00-425-8000INTERCHANGEABLE
FLASK,VOLUMETRIC

Frequently Asked Questions

What is NSN 9540-00-148-4299?

NSN 9540-00-148-4299 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 9540-00-148-4299?

NSN 9540-00-148-4299 has 8 cross-referenced part numbers: 78M (Aluminum Co of America), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/11 (Sae International Dba Sae International), 2-145 (Lockheed Martin Corporation Div Rotary and Mission Systems), 5640 (Alcoa/reynolds Metals Company) and 3 more.

What NSN replaces 9540-00-148-4299?

There are 12 known substitutes for 9540-00-148-4299: 5325-00-079-7237, 4820-00-087-8451, 5999-00-102-7450 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 78M?

Key specifications for 78M: Nondefinitive Spec/std Data: 7075 ALLOY AND T6 TEMPER; Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN; Overall Width: 1.000 INCHES NOMINAL IN; Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE. 18 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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