PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-151-3927 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-151-3927 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-151-3927. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
  • Fillet Radius Where Left Flange Joins Base Flange: 0.187 INCHES NOMINAL IN
  • First Tip Radius: 0.062 INCHES NOMINAL IN
  • First Tip Style: RIGHT QUARTER RADIUS
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Basic Shape Style: ANGLE
  • Left Side Flange Thickness: 0.062 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-151-3927, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-151-3927
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Fillet Radius Where Left Flange Joins Base Flange0.187 INCHES NOMINAL IN
First Tip Radius0.062 INCHES NOMINAL IN
First Tip StyleRIGHT QUARTER RADIUS
Second Tip Relationship to First TipNOT IDENTICAL
Basic Shape StyleANGLE
Left Side Flange Thickness0.062 INCHES NOMINAL IN
Nondefinitive Spec/std Data2024 ALLOY AND T3511 TEMPER
Weight Per Unit Measure0.340 POUNDS PER LINEAR FOOT LBS
Base Flange Thickness0.156 INCHES NOMINAL IN
Material Document and ClassificationAMS-QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE
Left Flange Thickness at Base0.140 INCHES NOMINAL IN
Heat TreatmentT-3511 SOLUTION HEAT TREATED
Second Tip Radius0.125 INCHES NOMINAL IN
Left Outside Angle90.0 DEGREES NOMINAL
MaterialALUMINUM ALLOY 2024
Second Tip StyleUPPER RADIUS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-023-54102088109-2 INTERCHANGEABLE
Transistor
Honeywell International Inc Dba Honeywell
5365-00-287-152714867 INTERCHANGEABLE
Plug,machine Thread
Brinkley Technology Group Llc Dba Hercules Manufacturing
6515-00-392-072213-1004 INTERCHANGEABLE
Blade,laminectomy Retractor
Specialty Surgical Instrumentation, Inc. Dba Symmetry Surgical Inc Div Symmetry Surgical
2915-00-453-2781 INTERCHANGEABLE
Filter Special
5810-00-565-8041 INTERCHANGEABLE
Bracket
5340-00-633-263214867 INTERCHANGEABLE
Bracket,mounting
Mission Systems Orchard Park Inc
5320-00-637-6245NAS1486-07 INTERCHANGEABLE
Pin-Rivet
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5315-00-837-291900-K-220B INTERCHANGEABLE
Key,machine
U S Army Tank Automotive Command Amsta-Im-Mm
3040-00-884-281514867 INTERCHANGEABLE
Shaft,valve Brake
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6130-01-168-719914867 INTERCHANGEABLE
Power Supply
Versitron Inc
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)
131004 The Boeing Company (USA)
AMS-QQ-A-200/3 Society of Automotive Engineers Inc (USA)
PA11053 Transtar Metals Corp (USA)
131004 The Boeing Company (USA)
60-661 Transtar Metals Corp (USA)
14867 Aluminum Co of America (USA)
Related Parts
5961-00-023-5410INTERCHANGEABLE
TRANSISTOR
2088109-2
5365-00-287-1527INTERCHANGEABLE
PLUG,MACHINE THREAD
14867
6515-00-392-0722INTERCHANGEABLE
BLADE,LAMINECTOMY RETRACTOR
13-1004
2915-00-453-2781INTERCHANGEABLE
FILTER SPECIAL
5810-00-565-8041INTERCHANGEABLE
BRACKET
5340-00-633-2632INTERCHANGEABLE
BRACKET,MOUNTING
14867
5320-00-637-6245INTERCHANGEABLE
PIN-RIVET
NAS1486-07
5315-00-837-2919INTERCHANGEABLE
KEY,MACHINE
00-K-220B
3040-00-884-2815INTERCHANGEABLE
SHAFT,VALVE BRAKE
14867
6130-01-168-7199INTERCHANGEABLE
POWER SUPPLY
14867
5310-01-180-2266INTERCHANGEABLE
NUT
460661-001
4130-01-194-9837INTERCHANGEABLE
CONDENSER COIL,REFRIGERATION
60661

Frequently Asked Questions

What is NSN 9540-00-151-3927?

NSN 9540-00-151-3927 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 9540-00-151-3927?

NSN 9540-00-151-3927 has 9 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), 131004 (The Boeing Company), AMS-QQ-A-200/3 (Society of Automotive Engineers Inc) and 4 more.

What NSN replaces 9540-00-151-3927?

There are 12 known substitutes for 9540-00-151-3927: 5961-00-023-5410, 5365-00-287-1527, 6515-00-392-0722 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Overall Height: 1.562 INCHES NOMINAL IN; Overall Width: 0.812 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Fillet Radius Where Left Flange Joins Base Flange: 0.187 INCHES NOMINAL IN. 19 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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