PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1771668Gear Cluster

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 3020-00-103-0113 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-103-0113 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-103-0113. Primary manufacturer part number: 1771668.
Features
  • Gear Cluster — FSC 3020
  • Nominal Outside Diameter: 1.041 INCHES FIFTH GEAR IN
  • Hub Style Designator: PINNED SECOND END
  • Precision Classification: QUALITY NUMBER 10 OR QUALITY NUMBER 11 FIRST GEAR
  • Attachment Method: MOUNTING HOLE
  • Construction: SOLID
  • Hub Nominal Length: 0.089 INCHES BETWEEN FIRST AND SECOND GEAR IN
  • Hub Nominal Diameter: 0.3750 INCHES BETWEEN SECOND AND THIRD GEAR IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Gear Cluster, cataloged under National Stock Number 3020-00-103-0113, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-103-0113
Primary Part Number1771668
Item NameGear Cluster
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Nominal Outside Diameter1.041 INCHES FIFTH GEAR IN
Hub Style DesignatorPINNED SECOND END
Precision ClassificationQUALITY NUMBER 10 OR QUALITY NUMBER 11 FIRST GEAR
Attachment MethodMOUNTING HOLE
ConstructionSOLID
Hub Nominal Length0.089 INCHES BETWEEN FIRST AND SECOND GEAR IN
Hub Nominal Diameter0.3750 INCHES BETWEEN SECOND AND THIRD GEAR IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) BOTH ENDS
Hub Nominal Length0.200 INCHES SECOND END IN
Design TypeSPUR SECOND GEAR
Nominal Outside Diameter1.603 INCHES FOURTH GEAR IN
Material Document and ClassificationQQ-A-225/8,T6 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Nominal Thread Size0.112 INCHES BOTH ENDS IN
Bore StylePLAIN BOTH ENDS
MaterialALUMINUM ALLOY 6061 OVERALL
Nominal Overall Length0.475 INCHES IN
Design TypeSPUR FIRST GEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-100-9500396 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
6685-00-640-9291934-01 INTERCHANGEABLE
Indicator,temperature,thermocoup
Elbitamerica, Inc.
5945-00-813-3470 INTERCHANGEABLE
Relay,electromagnetic
5962-01-006-263193401 INTERCHANGEABLE
Microcircuit
Texas Instruments Incorporated
3020-01-167-80332BE665 INTERCHANGEABLE
Gear,bevel
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
93-401 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1771668 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
3110-00-100-9500INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
396
6685-00-640-9291INTERCHANGEABLE
INDICATOR,TEMPERATURE,THERMOCOUP
934-01
5945-00-813-3470INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5962-01-006-2631INTERCHANGEABLE
MICROCIRCUIT
93401
3020-01-167-8033INTERCHANGEABLE
GEAR,BEVEL
2BE665

Frequently Asked Questions

What is NSN 3020-00-103-0113?

NSN 3020-00-103-0113 is a Gear Cluster, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-103-0113?

NSN 3020-00-103-0113 has 2 cross-referenced part numbers: 93-401 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1771668 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 3020-00-103-0113?

There are 5 known substitutes for 3020-00-103-0113: 3110-00-100-9500, 6685-00-640-9291, 5945-00-813-3470 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1771668?

Key specifications for 1771668: Nominal Outside Diameter: 1.041 INCHES FIFTH GEAR IN; Hub Style Designator: PINNED SECOND END; Precision Classification: QUALITY NUMBER 10 OR QUALITY NUMBER 11 FIRST GEAR; Attachment Method: MOUNTING HOLE. 17 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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