PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PA8550Beam,structural

Transtar Metals Corp · NSN 9540-00-079-6160 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-079-6160 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-079-6160. Primary manufacturer part number: PA8550.
Features
  • Beam,structural — FSC 9540
  • Right Side Top Flange Thickness: 0.210 INCHES NOMINAL IN
  • First Tip Style: LOWER RADIUS
  • Heat Treatment: T-6 SOLUTION HEAT TREATED AND ARTIFICALLY AGED
  • Right Side Bottom Flange Distance to Center of Both Flanges: 1.500 INCHES NOMINAL IN
  • Third Tip Style: UPPER RADIUS
  • Right Bottom Inside Angle: 90.0 DEGREES NOMINAL
  • Web Flange Thickness: 0.210 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 6061 construction
General Description

The Beam,structural, cataloged under National Stock Number 9540-00-079-6160, 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 Transtar Metals Corp. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-079-6160
Primary Part NumberPA8550
Item NameBeam,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerTranstar Metals Corp
StatusACTIVE
Right Side Top Flange Thickness0.210 INCHES NOMINAL IN
First Tip StyleLOWER RADIUS
Heat TreatmentT-6 SOLUTION HEAT TREATED AND ARTIFICALLY AGED
Right Side Bottom Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Third Tip StyleUPPER RADIUS
Right Bottom Inside Angle90.0 DEGREES NOMINAL
Web Flange Thickness0.210 INCHES NOMINAL IN
First Tip Radius0.130 INCHES NOMINAL IN
Nondefinitive Spec/std DataALUMINUM ALLOY 6061 COMPOSITION AND T6 TEMPER
Left Side Bottom Flange Thickness0.210 INCHES NOMINAL IN
Material Document and ClassificationAMS-QQ-A-200/8 FED SPEC SINGLE MATERIAL RESPONSE
Bottom Flange Width3.000 INCHES NOMINAL IN
Fillet Radius Where Top Left Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
Top Flange Width3.000 INCHES NOMINAL IN
Left Side Top Flange Thickness0.210 INCHES NOMINAL IN
Left Top Inside Angle90.0 DEGREES NOMINAL
Left Side Top Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Third Tip Radius0.130 INCHES NOMINAL IN
Right Side Top Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Fillet Radius Where Top Right Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Right Side Bottom Flange Thickness0.210 INCHES NOMINAL IN
Fillet Radius Where Bottom Left Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Left Bottom Inside Angle90.0 DEGREES NOMINAL
Fillet Radius Where Bottom Right Flange Joins Web Flange/leg0.310 INCHES NOMINAL IN
Basic Shape StyleI SHAPE
Right Top Inside Angle90.0 DEGREES NOMINAL
MaterialALUMINUM ALLOY 6061
Left Side Bottom Flange Distance to Center of Both Flanges1.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
9540-00-043-2187 INTERCHANGEABLE
Angle,structural
9540-00-250-3606 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
9540-00-982-0578 INTERCHANGEABLE
Angle,structural
9540-01-008-7351 INTERCHANGEABLE
Angle,structural
9540-01-011-8521 INTERCHANGEABLE
Angle,structural
Cross-Reference Index
Part NumberManufacturer
PA8550 Transtar Metals Corp (USA)
2653E Alcoa/reynolds Metals Company (USA)
AMS-QQ-A-200/8 Society of Automotive Engineers Inc (USA)
QQA270 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
851-C Aluminum Co of America (USA)
AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
60-12445 Transtar Metals Corp (USA)
SAE-AMS-QQ-A-200/8 Sae International Dba Sae International (USA)
Related Parts
9540-00-043-2187INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-250-3606INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-542-2751INTERCHANGEABLE
BEAM,STRUCTURAL
6610-00-824-8616INTERCHANGEABLE
PITOT TUBE
0851C-1
9540-00-982-0578INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-008-7351INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-01-011-8521INTERCHANGEABLE
ANGLE,STRUCTURAL

Frequently Asked Questions

What is NSN 9540-00-079-6160?

NSN 9540-00-079-6160 is a Beam,structural, manufactured by Transtar Metals Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-079-6160?

NSN 9540-00-079-6160 has 8 cross-referenced part numbers: PA8550 (Transtar Metals Corp), 2653E (Alcoa/reynolds Metals Company), AMS-QQ-A-200/8 (Society of Automotive Engineers Inc), QQA270 (Federal Specifications Promulgated by General Services Administration Washington DC), 851-C (Aluminum Co of America) and 3 more.

What NSN replaces 9540-00-079-6160?

There are 7 known substitutes for 9540-00-079-6160: 9540-00-043-2187, 9540-00-250-3606, 9540-00-542-2751 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PA8550?

Key specifications for PA8550: Right Side Top Flange Thickness: 0.210 INCHES NOMINAL IN; First Tip Style: LOWER RADIUS; Heat Treatment: T-6 SOLUTION HEAT TREATED AND ARTIFICALLY AGED; Right Side Bottom Flange Distance to Center of Both Flanges: 1.500 INCHES NOMINAL IN. 30 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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