PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-147-6274 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-147-6274 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-147-6274. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Left Side Flange Thickness: 0.250 INCHES NOMINAL IN
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Base Flange Thickness: 0.250 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 2024 ALLOY AND T3511 TEMPER
  • Material Document and Classification: AMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Weight Per Unit Measure: 0.676 POUNDS PER LINEAR FOOT LBS
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-147-6274, 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 American Society for Testing and Materials Dba Astm International. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-147-6274
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Left Side Flange Thickness0.250 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Base Flange Thickness0.250 INCHES NOMINAL IN
Nondefinitive Spec/std Data2024 ALLOY AND T3511 TEMPER
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Second Tip Relationship to First TipNOT IDENTICAL
Weight Per Unit Measure0.676 POUNDS PER LINEAR FOOT LBS
First Tip StyleRIGHT QUARTER RADIUS
First Tip Radius0.125 INCHES NOMINAL IN
Basic Shape StyleANGLE
MaterialALUMINUM ALLOY 2024
Heat TreatmentT-3511 SOLUTION HEAT TREATED
Second Tip StyleUPPER RADIUS
Second Tip Radius0.125 INCHES NOMINAL IN
Fillet Radius Where Left Flange Joins Base Flange0.187 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-071-2071AEB02C500B00AW9A81 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
5330-00-193-2840 INTERCHANGEABLE
Seal,plain Encased
5365-00-382-8872800205 INTERCHANGEABLE
Shim Set
Clark Material Handling Company
9540-00-542-2698 INTERCHANGEABLE
Angle,structural
3750-00-641-119760205 INTERCHANGEABLE
Shears,pruning,hand
Yeoman & Company Dba Yo-Ho Quality Tools
2990-00-935-4452 INTERCHANGEABLE
Muffler,exhaust
5315-01-475-191160-205 INTERCHANGEABLE
Pin,straight,headless
Triumph Thermal Systems - Maryland, Inc.
4820-01-499-5988453036R2 INTERCHANGEABLE
Valve,safety Relief
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
AMS-QQ-A-200/3 Sae International Dba Sae International (USA)
BAC1503-4166 The Boeing Company Div Legacy Wichita (USA)
60-205 Transtar Metals Corp (USA)
LS3394 Lockheed Martin Corp (USA)
77C Aluminum Co of America (USA)
167891 The Boeing Company (USA)
167891 The Boeing Company (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
Related Parts
5305-00-071-2071INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AEB02C500B00AW9A81
5330-00-193-2840INTERCHANGEABLE
SEAL,PLAIN ENCASED
5365-00-382-8872INTERCHANGEABLE
SHIM SET
800205
9540-00-542-2698INTERCHANGEABLE
ANGLE,STRUCTURAL
3750-00-641-1197INTERCHANGEABLE
SHEARS,PRUNING,HAND
60205
2990-00-935-4452INTERCHANGEABLE
MUFFLER,EXHAUST
5315-01-475-1911INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
60-205
4820-01-499-5988INTERCHANGEABLE
VALVE,SAFETY RELIEF
453036R2

Frequently Asked Questions

What is NSN 9540-00-147-6274?

NSN 9540-00-147-6274 is a Angle,structural, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-147-6274?

NSN 9540-00-147-6274 has 10 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), QQ-A-200/3 (Federal Specifications Promulgated by General Services Administration Washington DC), AMS-QQ-A-200/3 (Sae International Dba Sae International), BAC1503-4166 (The Boeing Company Div Legacy Wichita), 60-205 (Transtar Metals Corp) and 5 more.

What NSN replaces 9540-00-147-6274?

There are 8 known substitutes for 9540-00-147-6274: 5305-00-071-2071, 5330-00-193-2840, 5365-00-382-8872 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Left Side Flange Thickness: 0.250 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.250 INCHES NOMINAL IN; Overall Height: 1.250 INCHES NOMINAL IN. 18 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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