PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PA3181Angle,structural

Transtar Metals Corp · NSN 9540-00-684-6315 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-684-6315 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-684-6315. Primary manufacturer part number: PA3181.
Features
  • Angle,structural — FSC 9540
  • Left Side Flange Thickness: 0.156 INCHES NOMINAL IN
  • Second Tip Style: SQUARE W/ INNER AND OUTER CORNER RADII
  • Second Tip Outer Radius: 0.031 INCHES NOMINAL IN
  • Weight Per Unit Measure: 0.320 POUNDS PER LINEAR FOOT LBS
  • Material: ALUMINUM ALLOY 7075
  • First Tip Outer Radius: 0.156 INCHES NOMINAL IN
  • Fillet Radius Where Left Flange Joins Base Flange: 0.156 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-684-6315, 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 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-684-6315
Primary Part NumberPA3181
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerTranstar Metals Corp
StatusACTIVE
Left Side Flange Thickness0.156 INCHES NOMINAL IN
Second Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Second Tip Outer Radius0.031 INCHES NOMINAL IN
Weight Per Unit Measure0.320 POUNDS PER LINEAR FOOT LBS
MaterialALUMINUM ALLOY 7075
First Tip Outer Radius0.156 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.156 INCHES NOMINAL IN
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
First Tip Inner Radius0.031 INCHES NOMINAL IN
Base Flange Thickness0.156 INCHES NOMINAL IN
Second Tip Inner Radius0.156 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Basic Shape StyleANGLE
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Outer Radius Where Left Flange Joins Base Flange0.031 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED
Second Tip Relationship to First TipNOT IDENTICAL
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Left Inside Angle90.0 DEGREES NOMINAL
Fabrication MethodEXTRUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5330-00-285-945451X455 INTERCHANGEABLE
Seal,plain Encased
Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
5961-00-549-2684 INTERCHANGEABLE
Transistor
2910-00-588-391360407B INTERCHANGEABLE
Nozzle,fuel Injecto
Dresser, Llc
2810-00-853-502060407 INTERCHANGEABLE
Strainer,oil Pump
Textron Lycoming Inc Williamsport Plant
5905-01-030-044660407 INTERCHANGEABLE
Resistor
General Dynamics Motion Control Llc
5310-01-035-086860825 INTERCHANGEABLE
Nut,plain,cap
Ambac International Corporation Div Ambac International
4820-01-342-3278 INTERCHANGEABLE
Valve,regulating,fluid Pressure
1680-01-354-69466040-7 INTERCHANGEABLE
Cover,seat Frame,aircraft
The Boeing Company
3120-01-366-7761N60825 INTERCHANGEABLE
Bushing,sleeve
Leslie Controls, Inc. Dba Leslie Controls Inc
5365-01-505-273360-825 INTERCHANGEABLE
Spacer,sleeve
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
PA3181 Transtar Metals Corp (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
60-407 Transtar Metals Corp (USA)
60825 Aluminum Co of America (USA)
Related Parts
5330-00-285-9454INTERCHANGEABLE
SEAL,PLAIN ENCASED
51X455
5961-00-549-2684INTERCHANGEABLE
TRANSISTOR
2910-00-588-3913INTERCHANGEABLE
NOZZLE,FUEL INJECTO
60407B
2810-00-853-5020INTERCHANGEABLE
STRAINER,OIL PUMP
60407
5905-01-030-0446INTERCHANGEABLE
RESISTOR
60407
5310-01-035-0868INTERCHANGEABLE
NUT,PLAIN,CAP
60825
4820-01-342-3278INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
1680-01-354-6946INTERCHANGEABLE
COVER,SEAT FRAME,AIRCRAFT
6040-7
3120-01-366-7761INTERCHANGEABLE
BUSHING,SLEEVE
N60825
5365-01-505-2733INTERCHANGEABLE
SPACER,SLEEVE
60-825
5325-01-678-6094INTERCHANGEABLE
RING,RETAINING
60407

Frequently Asked Questions

What is NSN 9540-00-684-6315?

NSN 9540-00-684-6315 is a Angle,structural, manufactured by Transtar Metals Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-684-6315?

NSN 9540-00-684-6315 has 7 cross-referenced part numbers: PA3181 (Transtar Metals Corp), ASTM B221 (American Society for Testing and Materials Dba Astm International), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), AMS-QQ-A-200/11 (Sae International Dba Sae International), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC) and 2 more.

What NSN replaces 9540-00-684-6315?

There are 11 known substitutes for 9540-00-684-6315: 5330-00-285-9454, 5961-00-549-2684, 2910-00-588-3913 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PA3181?

Key specifications for PA3181: Left Side Flange Thickness: 0.156 INCHES NOMINAL IN; Second Tip Style: SQUARE W/ INNER AND OUTER CORNER RADII; Second Tip Outer Radius: 0.031 INCHES NOMINAL IN; Weight Per Unit Measure: 0.320 POUNDS PER LINEAR FOOT LBS. 22 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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