PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S1418898Beam,structural

The Boeing Company · NSN 9540-00-529-9672 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-529-9672 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-529-9672. Primary manufacturer part number: S1418898.
Features
  • Beam,structural — FSC 9540
  • Top Flange Width: 1.750 INCHES NOMINAL IN
  • Fillet Radius Where Top Left Flange Joins Web Flange/leg: 0.125 INCHES NOMINAL IN
  • Leg Thickness: 0.125 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 7075
  • Fabrication Method: EXTRUDED
  • Right Side Top Flange Thickness: 0.125 INCHES NOMINAL IN
  • Second Tip Relationship to First Tip: IDENTICAL
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-529-9672, 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 The Boeing Company. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-529-9672
Primary Part NumberS1418898
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerThe Boeing Company
StatusCANCELLED
Top Flange Width1.750 INCHES NOMINAL IN
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.125 INCHES NOMINAL IN
Leg Thickness0.125 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 7075
Fabrication MethodEXTRUDED
Right Side Top Flange Thickness0.125 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
Left Top Inside Angle90.0 DEGREES NOMINAL
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Left Side Top Flange Thickness0.125 INCHES NOMINAL IN
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std DataT6 TEMPER
Weight Per Unit Measure0.470 POUNDS PER LINEAR FOOT LBS
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.125 INCHES NOMINAL IN
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
First Tip StyleFULL RADIUS
Basic Shape StyleT SHAPE
First Tip Radius0.063 INCHES NOMINAL IN
Left Side Top Flange Distance to Center of Both Flanges0.875 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges0.875 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED
Right Top Inside Angle90.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9540-00-167-2706 INTERCHANGEABLE
Channel,structural
9540-00-226-0369 INTERCHANGEABLE
Beam,structural
9540-00-234-0598 INTERCHANGEABLE
Angle,structural
9540-00-234-0633 INTERCHANGEABLE
Channel,structural
9540-00-261-5279 INTERCHANGEABLE
Structural Section,special Shape
9540-00-528-8819 INTERCHANGEABLE
Beam,structural
9540-00-528-9346E711310XRAND INTERCHANGEABLE
Beam,structural
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
9540-00-540-594110133-0701 INTERCHANGEABLE
Angle,structural
Transtar Metals Corp
9540-00-580-6228 INTERCHANGEABLE
Beam,structural
9540-00-595-8497LS4672 INTERCHANGEABLE
Beam,structural
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
S1418898 The Boeing Company (USA)
67950 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)
QQ-A-277 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
1418898-7200 The Boeing Company (USA)
S1418898 The Boeing Company (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
Related Parts
9540-00-167-2706INTERCHANGEABLE
CHANNEL,STRUCTURAL
9540-00-226-0369INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-234-0598INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-234-0633INTERCHANGEABLE
CHANNEL,STRUCTURAL
9540-00-261-5279INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
9540-00-528-8819INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-528-9346INTERCHANGEABLE
BEAM,STRUCTURAL
E711310XRAND
9540-00-540-5941INTERCHANGEABLE
ANGLE,STRUCTURAL
10133-0701
9540-00-580-6228INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-595-8497INTERCHANGEABLE
BEAM,STRUCTURAL
LS4672
9540-00-596-3123INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-637-3268INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-529-9672?

NSN 9540-00-529-9672 is a Beam,structural, manufactured by The Boeing Company, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-529-9672?

NSN 9540-00-529-9672 has 8 cross-referenced part numbers: S1418898 (The Boeing Company), 67950 (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), QQ-A-277 (Federal Specifications Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 9540-00-529-9672?

There are 12 known substitutes for 9540-00-529-9672: 9540-00-167-2706, 9540-00-226-0369, 9540-00-234-0598 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S1418898?

Key specifications for S1418898: Top Flange Width: 1.750 INCHES NOMINAL IN; Fillet Radius Where Top Left Flange Joins Web Flange/leg: 0.125 INCHES NOMINAL IN; Leg Thickness: 0.125 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 7075. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-529-9672 still in active supply?

NSN 9540-00-529-9672 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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