PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1199973Angle,structural

The Boeing Company · NSN 9540-00-540-5937 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-540-5937 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-540-5937. Primary manufacturer part number: 1199973.
Features
  • Angle,structural — FSC 9540
  • First Tip Style: RIGHT QUARTER RADIUS
  • Base Flange Thickness: 0.063 INCHES NOMINAL IN
  • Left Inside Angle: 90.0 DEGREES NOMINAL
  • Material Document and Classification: QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE
  • Nondefinitive Spec/std Data: 0 TEMPER
  • Material: ALUMINUM ALLOY 2024
  • Weight Per Unit Measure: 0.110 POUNDS PER LINEAR FOOT LBS
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-540-5937, 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 The Boeing Company. Government technical data includes 17 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
NSN9540-00-540-5937
Primary Part Number1199973
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
First Tip StyleRIGHT QUARTER RADIUS
Base Flange Thickness0.063 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Material Document and ClassificationQQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE
Nondefinitive Spec/std Data0 TEMPER
MaterialALUMINUM ALLOY 2024
Weight Per Unit Measure0.110 POUNDS PER LINEAR FOOT LBS
Fabrication MethodEXTRUDED
Second Tip Radius0.063 INCHES NOMINAL IN
Second Tip StyleUPPER RADIUS
Second Tip Relationship to First TipNOT IDENTICAL
First Tip Radius0.063 INCHES NOMINAL IN
Heat TreatmentO-ANNEALED
Basic Shape StyleANGLE
Length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
Fillet Radius Where Left Flange Joins Base Flange0.094 INCHES NOMINAL IN
Left Side Flange Thickness0.063 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9540-00-151-5114 INTERCHANGEABLE
Angle,structural
3110-00-156-142221309 INTERCHANGEABLE
Bearing,roller,self-Aligning
Naval Ship Systems Command
9540-00-217-3493 INTERCHANGEABLE
Angle,structural
6810-00-237-2955 INTERCHANGEABLE
Hydrochloric Acid
6685-00-249-7662151-6 INTERCHANGEABLE
Control,temperature,indicating
Emerson Electric Co White Rodgers Co Div
9540-00-261-5637 INTERCHANGEABLE
Angle,structural
5998-00-297-463550298 INTERCHANGEABLE
Circuit Card Assembly
Lockheed Martin Corporation Div Rms - Mitchel Field
5985-00-323-1276 INTERCHANGEABLE
Line Section,radio Frequency Tra
3020-00-454-9542 INTERCHANGEABLE
Gear,spur
6635-00-463-7476 INTERCHANGEABLE
Belt,endless Woven
Cross-Reference Index
Part NumberManufacturer
1199973 The Boeing Company (USA)
HA356 Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept (USA)
9535 Reynolds Metals Co (USA)
FS10101-0808-2 Hiller Aircraft Corporation (USA)
14630 International Light Metals Corp Sub of Martin Marietta Corp (USA)
50298 National Distillers and Chemical Corp Bridgeport Brass Co Div (USA)
QQ-A-200/3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
1188873 The Boeing Company (USA)
2-1309 Lockheed Martin Corporation Div Rotary and Mission Systems (USA)
AND10133-0601 Airforce-Navy Aeronautical Design Standard
Related Parts
9540-00-151-5114INTERCHANGEABLE
ANGLE,STRUCTURAL
3110-00-156-1422INTERCHANGEABLE
BEARING,ROLLER,SELF-ALIGNING
21309
9540-00-217-3493INTERCHANGEABLE
ANGLE,STRUCTURAL
6810-00-237-2955INTERCHANGEABLE
HYDROCHLORIC ACID
6685-00-249-7662INTERCHANGEABLE
CONTROL,TEMPERATURE,INDICATING
151-6
9540-00-261-5637INTERCHANGEABLE
ANGLE,STRUCTURAL
5998-00-297-4635INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
50298
5985-00-323-1276INTERCHANGEABLE
LINE SECTION,RADIO FREQUENCY TRA
3020-00-454-9542INTERCHANGEABLE
GEAR,SPUR
6635-00-463-7476INTERCHANGEABLE
BELT,ENDLESS WOVEN
9540-00-486-6130INTERCHANGEABLE
ANGLE,STRUCTURAL
6145-00-601-5580INTERCHANGEABLE
CABLE,RADIO FREQUENCY
8868319-5

Frequently Asked Questions

What is NSN 9540-00-540-5937?

NSN 9540-00-540-5937 is a Angle,structural, manufactured by The Boeing Company, classified under FSC 9540 (No Item Name Available). Status: active.

What are the part numbers for NSN 9540-00-540-5937?

NSN 9540-00-540-5937 has 10 cross-referenced part numbers: 1199973 (The Boeing Company), HA356 (Kaiser Aluminum and Chemical Corp Trentwood Works-Marketing Dept), 9535 (Reynolds Metals Co), FS10101-0808-2 (Hiller Aircraft Corporation), 14630 (International Light Metals Corp Sub of Martin Marietta Corp) and 5 more.

What NSN replaces 9540-00-540-5937?

There are 12 known substitutes for 9540-00-540-5937: 9540-00-151-5114, 3110-00-156-1422, 9540-00-217-3493 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1199973?

Key specifications for 1199973: First Tip Style: RIGHT QUARTER RADIUS; Base Flange Thickness: 0.063 INCHES NOMINAL IN; Left Inside Angle: 90.0 DEGREES NOMINAL; Material Document and Classification: QQ-A-200/3 FED SPEC 1ST MATERIAL RESPONSE. 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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