PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

16273Angle,structural

International Light Metals Corp Sub of Martin Marietta Corp · NSN 9540-00-637-3268 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-637-3268 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-637-3268. Primary manufacturer part number: 16273.
Features
  • Angle,structural — FSC 9540
  • Fabrication Method: EXTRUDED
  • Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN
  • First Tip Inner Radius: 0.032 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 7075
  • First Tip Outer Radius: 0.032 INCHES NOMINAL IN
  • Base Flange Thickness: 0.125 INCHES NOMINAL IN
  • 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 9540-00-637-3268, 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 International Light Metals Corp Sub of Martin Marietta Corp. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 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
NSN9540-00-637-3268
Primary Part Number16273
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerInternational Light Metals Corp Sub of Martin Marietta Corp
StatusACTIVE
Fabrication MethodEXTRUDED
Fillet Radius Where Left Flange Joins Base Flange0.125 INCHES NOMINAL IN
First Tip Inner Radius0.032 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 7075
First Tip Outer Radius0.032 INCHES NOMINAL IN
Base Flange Thickness0.125 INCHES NOMINAL IN
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
First Tip StyleSQUARE W/ INNER AND OUTER CORNER RADII
Second Tip Relationship to First TipIDENTICAL
Basic Shape StyleANGLE
Left Inside Angle90.0 DEGREES NOMINAL
Weight Per Unit Measure0.742 POUNDS PER LINEAR FOOT LBS
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
Left Side Flange Thickness0.125 INCHES NOMINAL IN
Outer Radius Where Left Flange Joins Base Flange0.032 INCHES NOMINAL IN
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER OR T6511 TEMPER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9540-00-167-2706 INTERCHANGEABLE
Channel,structural
9540-00-226-0369 INTERCHANGEABLE
Beam,structural
9540-00-234-0598 INTERCHANGEABLE
Angle,structural
9540-00-234-0633 INTERCHANGEABLE
Channel,structural
3455-00-243-217311550 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
9540-00-261-5279 INTERCHANGEABLE
Structural Section,special Shape
5330-00-366-6423857646 INTERCHANGEABLE
Gasket
Chrysler Realty Company Llc Dba Daimler Chrysler
9540-00-528-8819 INTERCHANGEABLE
Beam,structural
9540-00-528-9346E711310XRAND INTERCHANGEABLE
Beam,structural
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
9540-00-529-9672 INTERCHANGEABLE
Beam,structural
Cross-Reference Index
Part NumberManufacturer
16273 International Light Metals Corp Sub of Martin Marietta Corp (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
LS3919 Lockheed Martin Corp (USA)
QQA277 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
9540-00-167-2706INTERCHANGEABLE
CHANNEL,STRUCTURAL
9540-00-226-0369INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-234-0598INTERCHANGEABLE
ANGLE,STRUCTURAL
9540-00-234-0633INTERCHANGEABLE
CHANNEL,STRUCTURAL
3455-00-243-2173INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11550
9540-00-261-5279INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
5330-00-366-6423INTERCHANGEABLE
GASKET
857646
9540-00-528-8819INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-528-9346INTERCHANGEABLE
BEAM,STRUCTURAL
E711310XRAND
9540-00-529-9672INTERCHANGEABLE
BEAM,STRUCTURAL
9540-00-540-5941INTERCHANGEABLE
ANGLE,STRUCTURAL
10133-0701
3510-00-575-0102INTERCHANGEABLE
PADDING FLANNEL,LAUNDRY PRESS,CO
16273

Frequently Asked Questions

What is NSN 9540-00-637-3268?

NSN 9540-00-637-3268 is a Angle,structural, manufactured by International Light Metals Corp Sub of Martin Marietta Corp, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-637-3268?

NSN 9540-00-637-3268 has 5 cross-referenced part numbers: 16273 (International Light Metals Corp Sub of Martin Marietta Corp), AMS-QQ-A-200/11 (Society of Automotive Engineers Inc), AMS-QQ-A-200/11 (Sae International Dba Sae International), LS3919 (Lockheed Martin Corp), QQA277 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 9540-00-637-3268?

There are 12 known substitutes for 9540-00-637-3268: 9540-00-167-2706, 9540-00-226-0369, 9540-00-234-0598 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 16273?

Key specifications for 16273: Overall Height: 1.250 INCHES NOMINAL IN; Fabrication Method: EXTRUDED; Fillet Radius Where Left Flange Joins Base Flange: 0.125 INCHES NOMINAL IN; First Tip Inner Radius: 0.032 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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