PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

851CBeam,structural

Aluminum Co of America · NSN 9540-00-250-3606 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-250-3606 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-250-3606. Primary manufacturer part number: 851C.
Features
  • Beam,structural — FSC 9540
  • Left Side Top Flange Distance to Center of Both Flanges: 1.500 INCHES NOMINAL IN
  • Third Tip Radius: 0.130 INCHES NOMINAL IN
  • First Tip Style: LOWER RADIUS
  • Web Flange Thickness: 0.210 INCHES NOMINAL IN
  • Left Side Bottom Flange Distance to Center of Both Flanges: 1.500 INCHES NOMINAL IN
  • Right Side Bottom Flange Distance to Center of Both Flanges: 1.500 INCHES NOMINAL IN
  • Left Side Top Flange Tip Thickness: 0.210 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-250-3606, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-250-3606
Primary Part Number851C
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAluminum Co of America
StatusCANCELLED
Left Side Top Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Third Tip Radius0.130 INCHES NOMINAL IN
First Tip StyleLOWER RADIUS
Web Flange Thickness0.210 INCHES NOMINAL IN
Left Side Bottom Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Right Side Bottom Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Left Side Top Flange Tip Thickness0.210 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 6061
Basic Shape StyleI SHAPE
Second Tip Relationship to First TipIDENTICAL
Right Side Top Flange Tip Thickness0.210 INCHES NOMINAL IN
Right Side Top Flange Thickness0.489 INCHES NOMINAL IN
Right Side Bottom Flange Thickness0.489 INCHES NOMINAL IN
First Tip Radius0.130 INCHES NOMINAL IN
Length20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT
Right Side Bottom Flange Tip Thickness0.210 INCHES NOMINAL IN
Material Document and ClassificationAMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
Fabrication MethodEXTRUDED
Bottom Flange Width3.000 INCHES NOMINAL IN
Left Side Top Flange Thickness0.489 INCHES NOMINAL IN
Nondefinitive Spec/std DataT6 TEMPER
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Fillet Radius Where Bottom Left Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Fillet Radius Where Bottom Right Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Fourth Tip Relationship to Preceding TipsIDENTICAL W/THIRD TIP
Weight Per Unit Measure3.430 POUNDS PER LINEAR FOOT LBS
Right Side Top Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Third Tip Relationship to Preceding TipsNOT IDENTICAL
Left Side Bottom Flange Thickness0.489 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
9540-00-079-6160 INTERCHANGEABLE
Beam,structural
9540-00-542-2751 INTERCHANGEABLE
Beam,structural
6610-00-824-86160851C-1 INTERCHANGEABLE
Pitot Tube
Rosemount Aerospace Inc Dba Rosemount Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
851C Aluminum Co of America (USA)
AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
SAE-AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
QQA200-8 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/8 Society of Automotive Engineers Inc (USA)
Related Parts
9540-00-079-6160INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-542-2751INTERCHANGEABLE
BEAM,STRUCTURAL
6610-00-824-8616INTERCHANGEABLE
PITOT TUBE
0851C-1

Frequently Asked Questions

What is NSN 9540-00-250-3606?

NSN 9540-00-250-3606 is a Beam,structural, manufactured by Aluminum Co of America, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-250-3606?

NSN 9540-00-250-3606 has 5 cross-referenced part numbers: 851C (Aluminum Co of America), AMS-QQ-A-200/8 (Sae International Dba Sae International), SAE-AMS-QQ-A-200/8 (Sae International Dba Sae International), QQA200-8 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/8 (Society of Automotive Engineers Inc).

What NSN replaces 9540-00-250-3606?

There are 3 known substitutes for 9540-00-250-3606: 9540-00-079-6160, 9540-00-542-2751, 6610-00-824-8616. Verify interchangeability with system specifications before substitution.

What are the specifications of 851C?

Key specifications for 851C: Left Side Top Flange Distance to Center of Both Flanges: 1.500 INCHES NOMINAL IN; Third Tip Radius: 0.130 INCHES NOMINAL IN; First Tip Style: LOWER RADIUS; Web Flange Thickness: 0.210 INCHES NOMINAL IN. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-250-3606 still in active supply?

NSN 9540-00-250-3606 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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