PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12746-3Angle,structural

International Light Metals Corp Sub of Martin Marietta Corp · NSN 9540-00-720-1357 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-720-1357 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-720-1357. Primary manufacturer part number: 12746-3.
Features
  • Angle,structural — FSC 9540
  • Length: 12.000 FEET NOMINAL FT
  • Fabrication Method: EXTRUDED
  • Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2014
  • Basic Shape Style: ANGLE
  • Left Side Flange Thickness: 0.125 INCHES NOMINAL IN
  • Left Inside Angle: 90.0 DEGREES NOMINAL
Applications
  • Applications requiring Aluminum Alloy 2014 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-720-1357, 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 International Light Metals Corp Sub of Martin Marietta Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 14 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
NSN9540-00-720-1357
Primary Part Number12746-3
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerInternational Light Metals Corp Sub of Martin Marietta Corp
StatusACTIVE
Length12.000 FEET NOMINAL FT
Fabrication MethodEXTRUDED
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2014
Basic Shape StyleANGLE
Left Side Flange Thickness0.125 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Weight Per Unit Measure0.970 POUNDS PER LINEAR FOOT LBS
Material Document and ClassificationAMS-QQ-A-200/2 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std Data2014 ALLOY AND T4 TEMPER
Base Flange Thickness0.125 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
First Tip StyleSQUARE END
Heat TreatmentT-4 SOLUTION HEAT TREATED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-038-65498006 INTERCHANGEABLE
Lock Ring
Tuthill Corp Hansen Coupling Div
3040-00-064-541944569 INTERCHANGEABLE
Gearshaft,spur
L3harris Technologies, Inc. Div Space and Airborne Systems
9540-00-086-1490LS3511 INTERCHANGEABLE
Angle,structural
Lockheed Martin Corp
6515-00-089-5781 INTERCHANGEABLE
Compressor and Pump
3120-00-110-9569 INTERCHANGEABLE
Bearing,differentia
9540-00-145-5803 INTERCHANGEABLE
Angle,structural
3110-00-156-40657006 INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
3455-00-167-209878937 INTERCHANGEABLE
Cutter,milling,end
Carbide Tools for Industry, Inc.
3455-00-243-217311550 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
2810-00-306-651113633 INTERCHANGEABLE
Baffle,oil Impeller Bearing
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
Cross-Reference Index
Part NumberManufacturer
12746-3 International Light Metals Corp Sub of Martin Marietta Corp (USA)
E122502 Hughes Missile Systems Co San Diego (USA)
8006 Reynolds Metals Co (USA)
AMS-QQ-A-200/2 Society of Automotive Engineers Inc (USA)
1159929 The Boeing Company (USA)
E122502 Bae Systems Technology Solutions & Services Inc. (USA)
LS3511 Lockheed Martin Corp (USA)
E122502 Tracor Flight Systems Inc Sub of Tracor Inc (USA)
13633 Aluminum Co of America (USA)
1223964 The Boeing Company (USA)
1159929 The Boeing Company (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
1249328 The Boeing Company (USA)
44569 Aluminum Co of America (USA)
AMS-QQ-A-200/2 Sae International Dba Sae International (USA)
1223964 The Boeing Company (USA)
1249328 The Boeing Company (USA)
E122502 General Dynamics Corp Convair Div Lindbergh Field Facility (USA)
QQ-A-200/2 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
60-208 Transtar Metals Corp (USA)
Related Parts
4730-00-038-6549INTERCHANGEABLE
LOCK RING
8006
3040-00-064-5419INTERCHANGEABLE
GEARSHAFT,SPUR
44569
9540-00-086-1490INTERCHANGEABLE
ANGLE,STRUCTURAL
LS3511
6515-00-089-5781INTERCHANGEABLE
COMPRESSOR AND PUMP
3120-00-110-9569INTERCHANGEABLE
BEARING,DIFFERENTIA
9540-00-145-5803INTERCHANGEABLE
ANGLE,STRUCTURAL
3110-00-156-4065INTERCHANGEABLE
BEARING,BALL,ANNULAR
7006
3455-00-167-2098INTERCHANGEABLE
CUTTER,MILLING,END
78937
3455-00-243-2173INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11550
2810-00-306-6511INTERCHANGEABLE
BAFFLE,OIL IMPELLER BEARING
13633
1660-00-518-5152INTERCHANGEABLE
SPOOL,VALVE
8006
9540-00-528-9327INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-720-1357?

NSN 9540-00-720-1357 is a Angle,structural, manufactured by International Light Metals Corp Sub of Martin Marietta Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-720-1357?

NSN 9540-00-720-1357 has 20 cross-referenced part numbers: 12746-3 (International Light Metals Corp Sub of Martin Marietta Corp), E122502 (Hughes Missile Systems Co San Diego), 8006 (Reynolds Metals Co), AMS-QQ-A-200/2 (Society of Automotive Engineers Inc), 1159929 (The Boeing Company) and 15 more.

What NSN replaces 9540-00-720-1357?

There are 12 known substitutes for 9540-00-720-1357: 4730-00-038-6549, 3040-00-064-5419, 9540-00-086-1490 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12746-3?

Key specifications for 12746-3: Length: 12.000 FEET NOMINAL FT; Fabrication Method: EXTRUDED; Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 2014. 16 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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