PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

206-409Gear,spur

Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp · NSN 3020-00-517-2334 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-517-2334 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-517-2334. Primary manufacturer part number: 206-409.
Features
  • Gear,spur — FSC 3020
  • Teeth Quantity: 99
  • Mounting Hole Thread Quantity Per Inch: 40 AXIALLY THROUGH BODY FIRST END
  • Pressure Angle: 14.5000 DEGREES
  • Mounting Hole Type and Quantity: 4 THREADED AXIALLY THROUGH BODY FIRST END
  • Material: ALUMINUM ALLOY OVERALL
  • Bolt Hole Circle Nominal Diameter: 2.312 INCHES AXIALLY THROUGH BODY FIRST END IN
  • Mounting Hole Thread Series Designator: UNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-517-2334, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-517-2334
Primary Part Number206-409
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNorthrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
StatusACTIVE
Teeth Quantity99
Mounting Hole Thread Quantity Per Inch40 AXIALLY THROUGH BODY FIRST END
Pressure Angle14.5000 DEGREES
Mounting Hole Type and Quantity4 THREADED AXIALLY THROUGH BODY FIRST END
MaterialALUMINUM ALLOY OVERALL
Bolt Hole Circle Nominal Diameter2.312 INCHES AXIALLY THROUGH BODY FIRST END IN
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END
Style DesignatorHUBLESS
Tooth FormSTANDARD
Face Nominal Width0.125 INCHES IN
Attachment MethodMOUNTING HOLE
Pitch Diameter3.0910 INCHES NOMINAL IN
Body StylePLAIN, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-881-07415-1292 INTERCHANGEABLE
Transformer,power Autotransforme
Superior Electric Holding Group Llc Div Specialty Product Technologies
5950-01-058-973251-292 INTERCHANGEABLE
Reactor
Gowanda Holdings, Llc Div Gowanda Electronics Corp.
5305-01-277-0999206409 INTERCHANGEABLE
Screw,machine
Brp Us Inc
4020-01-287-87805129-2 INTERCHANGEABLE
Twine,fibrous
L3harris Technologies, Inc. Div Space and Airborne Systems
5210-01-590-68064C8733 INTERCHANGEABLE
Gage,taper
Caterpillar Inc Div Caterpillar Defense
4730-01-664-803551292 INTERCHANGEABLE
Thread Piece,union
Stanley Black & Decker, Inc. Dba Stanley Hydraulic Tools Div Stanley Hydraulic Tools
5340-01-675-537320-6409 INTERCHANGEABLE
Stop,mechanical
Phillips Corporation Div Federal Division
Cross-Reference Index
Part NumberManufacturer
B21322 Litton Systems Inc Itek Optical Systems Div (USA)
R11220 Seeburg Corp the Seeburg Products Div (USA)
979-1B453 Advanced Logic Resources Inc Dba Alr (USA)
206-409 PRIMARY Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp (USA)
51292 Arma Div Ambac Industries Inc
979-1B453 Gap Instrument Corp (USA)
51292 PRIMARY Ambac International Corporation Div Ambac International (USA)
Related Parts
5950-00-881-0741INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
5-1292
5950-01-058-9732INTERCHANGEABLE
REACTOR
51-292
5305-01-277-0999INTERCHANGEABLE
SCREW,MACHINE
206409
4020-01-287-8780INTERCHANGEABLE
TWINE,FIBROUS
5129-2
5210-01-590-6806INTERCHANGEABLE
GAGE,TAPER
4C8733
4730-01-664-8035INTERCHANGEABLE
THREAD PIECE,UNION
51292
5340-01-675-5373INTERCHANGEABLE
STOP,MECHANICAL
20-6409

Frequently Asked Questions

What is NSN 3020-00-517-2334?

NSN 3020-00-517-2334 is a Gear,spur, manufactured by Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-517-2334?

NSN 3020-00-517-2334 has 7 cross-referenced part numbers: B21322 (Litton Systems Inc Itek Optical Systems Div), R11220 (Seeburg Corp the Seeburg Products Div), 979-1B453 (Advanced Logic Resources Inc Dba Alr), 206-409 (Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp), 51292 (Arma Div Ambac Industries Inc) and 2 more.

What NSN replaces 3020-00-517-2334?

There are 7 known substitutes for 3020-00-517-2334: 5950-00-881-0741, 5950-01-058-9732, 5305-01-277-0999 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 206-409?

Key specifications for 206-409: Teeth Quantity: 99; Mounting Hole Thread Quantity Per Inch: 40 AXIALLY THROUGH BODY FIRST END; Pressure Angle: 14.5000 DEGREES; Mounting Hole Type and Quantity: 4 THREADED AXIALLY THROUGH BODY FIRST END. 13 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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