PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

252-09Gear Cluster

Dukes Aerospace, Inc. · NSN 3020-00-204-2019 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-204-2019 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-204-2019. Primary manufacturer part number: 252-09.
Features
  • Gear Cluster — FSC 3020
  • Nominal Outside Diameter: 1.0420 INCHES FIRST GEAR IN
  • Hub Nominal Length: 0.047 INCHES BETWEEN FIRST AND SECOND GEAR IN
  • Bore Style: PLAIN BOTH ENDS
  • Construction: SOLID
  • Nominal Outside Diameter: 0.2920 INCHES SECOND GEAR IN
  • Material: STEEL OVERALL
  • Material Document and Classification: MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-204-2019, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dukes Aerospace, Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-204-2019
Primary Part Number252-09
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerDukes Aerospace, Inc.
StatusACTIVE
Nominal Outside Diameter1.0420 INCHES FIRST GEAR IN
Hub Nominal Length0.047 INCHES BETWEEN FIRST AND SECOND GEAR IN
Bore StylePLAIN BOTH ENDS
ConstructionSOLID
Nominal Outside Diameter0.2920 INCHES SECOND GEAR IN
MaterialSTEEL OVERALL
Material Document and ClassificationMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Design TypeSPUR SECOND GEAR
Nominal Overall Length0.210 INCHES IN
Bore Nominal Diameter0.125 INCHES BOTH ENDS IN
Design TypeSPUR FIRST GEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6240-00-727-857320773 INTERCHANGEABLE
Lamp,incandescent
Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
3110-01-043-5476 INTERCHANGEABLE
Bearing
5340-01-583-749825209 INTERCHANGEABLE
Cap,protective,dust and Moisture
Parker Hannifin Corporation Div Hydraulic Systems Division
Cross-Reference Index
Part NumberManufacturer
252-09 PRIMARY Dukes Aerospace, Inc. (USA)
Related Parts
6240-00-727-8573INTERCHANGEABLE
LAMP,INCANDESCENT
20773
3110-01-043-5476INTERCHANGEABLE
BEARING
5340-01-583-7498INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
25209

Frequently Asked Questions

What is NSN 3020-00-204-2019?

NSN 3020-00-204-2019 is a Gear Cluster, manufactured by Dukes Aerospace, Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-204-2019?

NSN 3020-00-204-2019 has 1 cross-referenced part number: 252-09 (Dukes Aerospace, Inc.).

What NSN replaces 3020-00-204-2019?

There are 3 known substitutes for 3020-00-204-2019: 6240-00-727-8573, 3110-01-043-5476, 5340-01-583-7498. Verify interchangeability with system specifications before substitution.

What are the specifications of 252-09?

Key specifications for 252-09: End Item Identification: F5/T38 ACFT; Nominal Outside Diameter: 1.0420 INCHES FIRST GEAR IN; Hub Nominal Length: 0.047 INCHES BETWEEN FIRST AND SECOND GEAR IN; Bore Style: PLAIN BOTH ENDS. 12 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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