PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2-218Beam,structural

Lockheed Martin Corporation Div Rotary and Mission Systems · NSN 9540-00-640-4229 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-640-4229 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-640-4229. Primary manufacturer part number: 2-218.
Features
  • Beam,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • Left Side Top Flange Thickness: 0.109 INCHES NOMINAL IN
  • Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP
  • Fillet Radius Where Top Right Flange Joins Web Flange/leg: 0.062 INCHES NOMINAL IN
  • Right Top Inside Angle: 90.0 DEGREES NOMINAL
  • Nondefinitive Spec/std Data: T6 TEMPER
  • Material Document and Classification: QQ-A-200/11 FED SPEC 1ST MATERIAL RESPONSE
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-640-4229, 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 Lockheed Martin Corporation Div Rotary and Mission Systems. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 9 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
NSN9540-00-640-4229
Primary Part Number2-218
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rotary and Mission Systems
StatusCANCELLED
Fabrication MethodEXTRUDED
Left Side Top Flange Thickness0.109 INCHES NOMINAL IN
Third Tip Relationship to Preceding TipsIDENTICAL W/FIRST TIP
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.062 INCHES NOMINAL IN
Right Top Inside Angle90.0 DEGREES NOMINAL
Nondefinitive Spec/std DataT6 TEMPER
Material Document and ClassificationQQ-A-200/11 FED SPEC 1ST MATERIAL RESPONSE
MaterialALUMINUM ALLOY 7075
Heat TreatmentT-6 SOLUTION HEAT TREATED
Top Flange Width1.750 INCHES NOMINAL IN
Right Side Top Flange Thickness0.109 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges0.875 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
First Tip StyleSQUARE END
Left Top Inside Angle90.0 DEGREES NOMINAL
Weight Per Unit Measure0.380 POUNDS PER LINEAR FOOT LBS
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Left Side Top Flange Distance to Center of Both Flanges0.875 INCHES NOMINAL IN
Leg Thickness0.109 INCHES NOMINAL IN
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.062 INCHES NOMINAL IN
Basic Shape StyleT SHAPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6540-00-082-16571101 + 5101 + 5508 INTERCHANGEABLE
Stereoscope,vision Testing
Mast Keystone Inc Dba Mast Development Company
5996-00-143-4783591 INTERCHANGEABLE
Amplifier,electronic Control
Power Control Devices, Inc.
9540-00-148-4793 INTERCHANGEABLE
Beam,structural
3110-00-155-676515090 INTERCHANGEABLE
Bearing,ball,annular
Garwood/feller Inc Garwood Winch Div
2540-00-248-4603104-18 INTERCHANGEABLE
Blade,windshield Wiper
Trico Products Corporation
2920-00-351-6756AS681L INTERCHANGEABLE
Sleeve,ignition Terminal
Renk America Llc Div Renk America
5915-00-355-9973 INTERCHANGEABLE
Filter,low Pass
5950-00-405-27393077 INTERCHANGEABLE
Transformer,power
Nwl, Inc.
6650-00-408-31052218 INTERCHANGEABLE
Lens,optical Instrument
Aerosonic Llc
5996-00-928-3181 INTERCHANGEABLE
Amplifier,magnetic
Cross-Reference Index
Part NumberManufacturer
2-218 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
P4079 Alcoa/reynolds Metals Company (USA)
1730 Aluminum Co of America (USA)
LS3214 Lockheed Martin Corp (USA)
AMS-QQA200-11 Society of Automotive Engineers Inc (USA)
AMS-QQA200-11 Sae International Dba Sae International (USA)
QQA200-11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
BAC1505-23903 The Boeing Company Div Defense (USA)
15090 International Light Metals Corp Sub of Martin Marietta Corp (USA)
Related Parts
6540-00-082-1657INTERCHANGEABLE
STEREOSCOPE,VISION TESTING
1101 + 5101 + 5508
5996-00-143-4783INTERCHANGEABLE
AMPLIFIER,ELECTRONIC CONTROL
591
9540-00-148-4793INTERCHANGEABLE
BEAM,STRUCTURAL
3110-00-155-6765INTERCHANGEABLE
BEARING,BALL,ANNULAR
15090
2540-00-248-4603INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
104-18
2920-00-351-6756INTERCHANGEABLE
SLEEVE,IGNITION TERMINAL
AS681L
5915-00-355-9973INTERCHANGEABLE
FILTER,LOW PASS
5950-00-405-2739INTERCHANGEABLE
TRANSFORMER,POWER
3077
6650-00-408-3105INTERCHANGEABLE
LENS,OPTICAL INSTRUMENT
2218
5996-00-928-3181INTERCHANGEABLE
AMPLIFIER,MAGNETIC
4720-00-967-8997INTERCHANGEABLE
HOSE,NONMETALLIC
5331-01-005-8367INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 9540-00-640-4229?

NSN 9540-00-640-4229 is a Beam,structural, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-640-4229?

NSN 9540-00-640-4229 has 9 cross-referenced part numbers: 2-218 (Lockheed Martin Corporation Div Rotary and Mission Systems), P4079 (Alcoa/reynolds Metals Company), 1730 (Aluminum Co of America), LS3214 (Lockheed Martin Corp), AMS-QQA200-11 (Society of Automotive Engineers Inc) and 4 more.

What NSN replaces 9540-00-640-4229?

There are 12 known substitutes for 9540-00-640-4229: 6540-00-082-1657, 5996-00-143-4783, 9540-00-148-4793 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2-218?

Key specifications for 2-218: Fabrication Method: EXTRUDED; Left Side Top Flange Thickness: 0.109 INCHES NOMINAL IN; Third Tip Relationship to Preceding Tips: IDENTICAL W/FIRST TIP; Fillet Radius Where Top Right Flange Joins Web Flange/leg: 0.062 INCHES NOMINAL IN. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-640-4229 still in active supply?

NSN 9540-00-640-4229 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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