PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM B221Angle,structural

American Society for Testing and Materials Dba Astm International · NSN 9540-00-186-6318 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-186-6318 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-186-6318. Primary manufacturer part number: ASTM B221.
Features
  • Angle,structural — FSC 9540
  • First Tip Style: SQUARE W/ INNER AND OUTER CORNER RADII
  • Second Tip Outer Radius: 0.045 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 7075
  • Material Document and Classification: AMS QQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
  • First Tip Outer Radius: 0.045 INCHES NOMINAL IN
  • Second Tip Relationship to First Tip: NOT IDENTICAL
  • Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-186-6318, 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 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN9540-00-186-6318
Primary Part NumberASTM B221
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Second Tip Outer Radius0.045 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 7075
Material Document and ClassificationAMS QQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
First Tip Outer Radius0.045 INCHES NOMINAL IN
Second Tip Relationship to First TipNOT IDENTICAL
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
First Tip Outer Radius0.045 INCHES NOMINAL IN
Left Side Flange Thickness0.250 INCHES NOMINAL IN
First Tip Inner Radius0.045 INCHES NOMINAL IN
Base Flange Thickness0.188 INCHES NOMINAL IN
Outer Radius Where Left Flange Joins Base Flange0.045 INCHES NOMINAL IN
Basic Shape StyleANGLE
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
Base Flange Thickness0.188 INCHES NOMINAL IN
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Material Document and ClassificationAMS QQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER
Fillet Radius Where Left Flange Joins Base Flange0.188 INCHES NOMINAL IN
Second Tip Inner Radius0.125 INCHES NOMINAL IN
Second Tip Outer Radius0.045 INCHES NOMINAL IN
Left Side Flange Thickness0.250 INCHES NOMINAL IN
Second Tip Relationship to First TipNOT IDENTICAL
Second Tip Inner Radius0.125 INCHES NOMINAL IN
Weight Per Unit Measure0.793 POUNDS PER LINEAR FOOT LBS
Fillet Radius Where Left Flange Joins Base Flange0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5340-00-105-606974051342 INTERCHANGEABLE
Strap,retaining
Kalmar AC Inc
5330-01-102-115456169 INTERCHANGEABLE
Seal,bonded
Leroi International Inc Dba Compair Leroi
4810-01-339-7356 INTERCHANGEABLE
Parts Kit,hydraulic-Pneumatic,li
6910-01-515-97216807 INTERCHANGEABLE
Moulage,war Wound
Simulaids, Inc. Div Simulaids
Cross-Reference Index
Part NumberManufacturer
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)
56169 International Light Metals Corp Sub of Martin Marietta Corp (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
PA1194 Transtar Metals Corp (USA)
LS3531-3 Lockheed Martin Corp (USA)
30913 Aluminum Co of America (USA)
Related Parts
5340-00-105-6069INTERCHANGEABLE
STRAP,RETAINING
74051342
5330-01-102-1154INTERCHANGEABLE
SEAL,BONDED
56169
4810-01-339-7356INTERCHANGEABLE
PARTS KIT,HYDRAULIC-PNEUMATIC,LI
6910-01-515-9721INTERCHANGEABLE
MOULAGE,WAR WOUND
6807

Frequently Asked Questions

What is NSN 9540-00-186-6318?

NSN 9540-00-186-6318 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 9540-00-186-6318?

NSN 9540-00-186-6318 has 8 cross-referenced part numbers: 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), 56169 (International Light Metals Corp Sub of Martin Marietta Corp), QQ-A-200/11 (Federal Specifications Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 9540-00-186-6318?

There are 4 known substitutes for 9540-00-186-6318: 5340-00-105-6069, 5330-01-102-1154, 4810-01-339-7356 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM B221?

Key specifications for ASTM B221: First Tip Style: SQUARE W/ INNER AND OUTER CORNER RADII; Second Tip Outer Radius: 0.045 INCHES NOMINAL IN; Material: ALUMINUM ALLOY 7075; Material Document and Classification: AMS QQ-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com