PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

23555Angle,structural

Alcoa/reynolds Metals Company · NSN 9540-00-027-9209 · FSC 9540 · No Item Name Available
Verified by PartsTable
NSN 9540-00-027-9209 — this item is cataloged by the U.S. Government under National Stock Number 9540-00-027-9209. Primary manufacturer part number: 23555.
Features
  • Angle,structural — FSC 9540
  • Second Tip Relationship to First Tip: IDENTICAL
  • Material: ALUMINUM ALLOY 7075
  • Nondefinitive Spec/std Data: 7075 ALLOY AND T6 TEMPER OR T6511 TEMPER
  • Weight Per Unit Measure: 0.443 POUNDS PER LINEAR FOOT LBS
  • Basic Shape Style: ANGLE
  • Material Document and Classification: AMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
  • First Tip Style: SQUARE END
Applications
  • Applications requiring Aluminum Alloy 7075 construction
General Description

The Angle,structural, cataloged under National Stock Number 9540-00-027-9209, 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 Alcoa/reynolds Metals Company. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN9540-00-027-9209
Primary Part Number23555
Item NameAngle,structural
FSC / FSG9540 / 95 — No Item Name Available
ManufacturerAlcoa/reynolds Metals Company
StatusCANCELLED
Second Tip Relationship to First TipIDENTICAL
MaterialALUMINUM ALLOY 7075
Nondefinitive Spec/std Data7075 ALLOY AND T6 TEMPER OR T6511 TEMPER
Weight Per Unit Measure0.443 POUNDS PER LINEAR FOOT LBS
Basic Shape StyleANGLE
Material Document and ClassificationAMS-Q-A-200/11 FED SPEC SINGLE MATERIAL RESPONSE
First Tip StyleSQUARE END
Base Flange Thickness0.094 INCHES NOMINAL IN
Left Side Flange Thickness0.094 INCHES NOMINAL IN
Heat TreatmentT-6 SOLUTION HEAT TREATED OR T-6511 SOLUTION HEAT TREATED
Fillet Radius Where Left Flange Joins Base Flange0.094 INCHES NOMINAL IN
Left Inside Angle90.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
9540-00-085-0539LS2419-2 INTERCHANGEABLE
Angle,structural
Lockheed Martin Corp
2930-00-211-8759896 INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
3415-00-222-093123-555 INTERCHANGEABLE
Grinding Machine,carbide Tool Bi
Delta Intl Machinery Corp
5330-00-292-1598052063-5 INTERCHANGEABLE
Seal,plain Encased
Gits Mfg Co Inc
5970-00-483-675972387 INTERCHANGEABLE
Insulator,washer
Hamilton Sundstrand Corporation Dba Collins Aerospace
5310-00-486-622850096 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Hamilton Sundstrand Corporation Dba Collins Aerospace
5950-00-647-672023555 INTERCHANGEABLE
Transformer,power
L3harris Technologies, Inc Div Space & Airborne Systems
5820-00-665-3328FRA28553-12A INTERCHANGEABLE
Control,transmitter,radio
L3harris Technologies, Inc.
2040-01-031-797450096 INTERCHANGEABLE
Erector Assembly,fo
L3 Technologies, Inc. Div L3 Keo
5945-01-036-838050096 INTERCHANGEABLE
Relay,electromagnetic
Cognitive Resources Inc Dba Gamewell Co the
Cross-Reference Index
Part NumberManufacturer
23555 Alcoa/reynolds Metals Company (USA)
T1673 Howmet Corporation Dba Alcoa Howmet, Whitehall, Casting Operations (USA)
ASTM B221 American Society for Testing and Materials Dba Astm International (USA)
PA5626 Transtar Metals Corp (USA)
QQ-A-200/11 7075-T6 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
LS4598-2 Lockheed Martin Corp (USA)
QQ-A-200/11 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
60-2192 Transtar Metals Corp (USA)
AMS-QQ-A-200/11 Society of Automotive Engineers Inc (USA)
72387 Aluminum Co of America (USA)
50096 International Light Metals Corp Sub of Martin Marietta Corp (USA)
LS4598 Lockheed Martin Corp (USA)
AMS-QQ-A-200/11 Sae International Dba Sae International (USA)
Related Parts
9540-00-085-0539INTERCHANGEABLE
ANGLE,STRUCTURAL
LS2419-2
2930-00-211-8759INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
896
3415-00-222-0931INTERCHANGEABLE
GRINDING MACHINE,CARBIDE TOOL BI
23-555
5330-00-292-1598INTERCHANGEABLE
SEAL,PLAIN ENCASED
052063-5
5970-00-483-6759INTERCHANGEABLE
INSULATOR,WASHER
72387
5310-00-486-6228INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
50096
5950-00-647-6720INTERCHANGEABLE
TRANSFORMER,POWER
23555
5820-00-665-3328INTERCHANGEABLE
CONTROL,TRANSMITTER,RADIO
FRA28553-12A
2040-01-031-7974INTERCHANGEABLE
ERECTOR ASSEMBLY,FO
50096
5945-01-036-8380INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
50096
5330-01-044-5162INTERCHANGEABLE
GASKET
50556
4820-01-106-4789INTERCHANGEABLE
VALVE,CHECK

Frequently Asked Questions

What is NSN 9540-00-027-9209?

NSN 9540-00-027-9209 is a Angle,structural, manufactured by Alcoa/reynolds Metals Company, classified under FSC 9540 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 9540-00-027-9209?

NSN 9540-00-027-9209 has 13 cross-referenced part numbers: 23555 (Alcoa/reynolds Metals Company), T1673 (Howmet Corporation Dba Alcoa Howmet, Whitehall, Casting Operations), ASTM B221 (American Society for Testing and Materials Dba Astm International), PA5626 (Transtar Metals Corp), QQ-A-200/11 7075-T6 (Federal Specifications Promulgated by General Services Administration Washington DC) and 8 more.

What NSN replaces 9540-00-027-9209?

There are 12 known substitutes for 9540-00-027-9209: 9540-00-085-0539, 2930-00-211-8759, 3415-00-222-0931 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 23555?

Key specifications for 23555: Second Tip Relationship to First Tip: IDENTICAL; Material: ALUMINUM ALLOY 7075; Nondefinitive Spec/std Data: 7075 ALLOY AND T6 TEMPER OR T6511 TEMPER; Overall Height: 2.000 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 9540-00-027-9209 still in active supply?

NSN 9540-00-027-9209 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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