PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-508-8788 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-508-8788 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-508-8788. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • First Tip Style: SQUARE END
  • Basic Shape Style: ANGLE
  • Material: ALUMINUM ALLOY 7075
  • Heat Treatment: T-6511 SOLUTION HEAT TREATED
  • Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
  • Left Side Flange Thickness: 0.070 INCHES NOMINAL IN
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-508-8788, 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 14 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-508-8788
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Fabrication MethodEXTRUDED
First Tip StyleSQUARE END
Basic Shape StyleANGLE
MaterialALUMINUM ALLOY 7075
Heat TreatmentT-6511 SOLUTION HEAT TREATED
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Left Side Flange Thickness0.070 INCHES NOMINAL IN
Nondefinitive Spec/std Data7075 ALLOY AND T6511 TEMPER
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Base Flange Thickness0.070 INCHES NOMINAL IN
Second Tip Relationship to First TipIDENTICAL
Fillet Radius Where Left Flange Joins Base Flange0.090 INCHES NOMINAL IN
Weight Per Unit Measure0.253 POUNDS PER LINEAR FOOT LBS
Left Inside Angle90.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-067-6681265345 INTERCHANGEABLE
Transistor
Gould Instrument Systems Inc
5315-00-146-263513-800 INTERCHANGEABLE
Pin,straight,headless
Pdi Ground Support Systems, Inc.
5331-00-166-1066M83248/1-115 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5133-00-189-9288 INTERCHANGEABLE
Drill,twist
5935-00-220-2288 INTERCHANGEABLE
Connector,receptacle,electrical
5940-00-258-5200 INTERCHANGEABLE
Terminal,stud
5930-00-417-729910668665 INTERCHANGEABLE
Switch,rotary
Us Army Aviation and Missile Command
4920-00-472-0970 INTERCHANGEABLE
Housing,tape Reader Assembly
4130-00-665-037613800 INTERCHANGEABLE
Temperature Control
Hdt Expeditionary Systems Inc
5305-00-999-3535 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
265345 Aluminum Co of America (USA)
PA19026 Transtar Metals Corp (USA)
13800 Pimalco Inc. Div Alcoa Inc Global Hard Alloy Extrusions (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
11393 Alcoa/reynolds Metals Company (USA)
60-15728 Transtar Metals Corp (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
1M2324 The Boeing Company Div Defense (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
Related Parts
5961-00-067-6681INTERCHANGEABLE
TRANSISTOR
265345
5315-00-146-2635INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
13-800
5331-00-166-1066INTERCHANGEABLE
O-RING
M83248/1-115
5133-00-189-9288INTERCHANGEABLE
DRILL,TWIST
5935-00-220-2288INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5940-00-258-5200INTERCHANGEABLE
TERMINAL,STUD
5930-00-417-7299INTERCHANGEABLE
SWITCH,ROTARY
10668665
4920-00-472-0970INTERCHANGEABLE
HOUSING,TAPE READER ASSEMBLY
4130-00-665-0376INTERCHANGEABLE
TEMPERATURE CONTROL
13800
5305-00-999-3535INTERCHANGEABLE
SCREW,MACHINE
2590-01-163-0554INTERCHANGEABLE
CAP,FILLER OPENING
265345
3120-01-223-4446INTERCHANGEABLE
BEARING,WASHER,THRUST
11-39-3

Frequently Asked Questions

What is NSN 9540-00-508-8788?

NSN 9540-00-508-8788 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 9540-00-508-8788?

NSN 9540-00-508-8788 has 10 cross-referenced part numbers: ASTM B221 (American Society for Testing and Materials Dba Astm International), 265345 (Aluminum Co of America), PA19026 (Transtar Metals Corp), 13800 (Pimalco Inc. Div Alcoa Inc Global Hard Alloy Extrusions), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc) and 5 more.

What NSN replaces 9540-00-508-8788?

There are 12 known substitutes for 9540-00-508-8788: 5961-00-067-6681, 5315-00-146-2635, 5331-00-166-1066 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: Fabrication Method: EXTRUDED; First Tip Style: SQUARE END; Basic Shape Style: ANGLE; Material: ALUMINUM ALLOY 7075. 16 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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