PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

543-3798-002Gear,spur

Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems · NSN 3020-00-825-0692 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-825-0692 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-825-0692. Primary manufacturer part number: 543-3798-002.
Features
  • Gear,spur — FSC 3020
  • Face Nominal Width: 0.125 INCHES IN
  • Body Style: PLAIN, SOLID
  • Bore Style: PLAIN BOTH ENDS
  • Clamping Surface Nominal Length: 0.125 INCHES FIRST END IN
  • Style Designator: PROTRUDING HUB
  • Tooth Form: STANDARD
  • Hub Style Designator: SPLIT FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Aluminum Alloy 2024 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-825-0692, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN3020-00-825-0692
Primary Part Number543-3798-002
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRockwell Collins, Inc. Div Collins Aerospace - Mission Systems
StatusACTIVE
Face Nominal Width0.125 INCHES IN
Body StylePLAIN, SOLID
Bore StylePLAIN BOTH ENDS
Clamping Surface Nominal Length0.125 INCHES FIRST END IN
Style DesignatorPROTRUDING HUB
Tooth FormSTANDARD
Hub Style DesignatorSPLIT FIRST END
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Attachment MethodCLAMP
Nominal Outside Diameter0.792 INCHES IN
MaterialALUMINUM ALLOY 2024 OVERALL
Nominal Distance Between Body Face and Protruding Hub End0.156 INCHES FIRST END IN
Surface TreatmentANODIZE HUB
Teeth Quantity36
Pressure Angle20.0000 DEGREES
Bore Nominal Diameter0.188 INCHES BOTH ENDS IN
Hub Nominal Diameter0.249 INCHES FIRST END IN
Surface TreatmentANODIZE BODY
Pitch Diameter0.7500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4730-00-278-3167209P-12-8 INTERCHANGEABLE
Bushing,pipe
Parker-Hannifin Corp Div Fluid System Connector Division
4730-00-278-3203 INTERCHANGEABLE
Bushing,pipe
2590-01-556-6811128140 INTERCHANGEABLE
Block,tapping
Nd Defense Llc
Cross-Reference Index
Part NumberManufacturer
128140 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
543-3798-002 PRIMARY Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
543-3798-002 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
4730-00-278-3167INTERCHANGEABLE
BUSHING,PIPE
209P-12-8
4730-00-278-3203INTERCHANGEABLE
BUSHING,PIPE
2590-01-556-6811INTERCHANGEABLE
BLOCK,TAPPING
128140

Frequently Asked Questions

What is NSN 3020-00-825-0692?

NSN 3020-00-825-0692 is a Gear,spur, manufactured by Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-825-0692?

NSN 3020-00-825-0692 has 3 cross-referenced part numbers: 128140 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 543-3798-002 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 543-3798-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 3020-00-825-0692?

There are 3 known substitutes for 3020-00-825-0692: 4730-00-278-3167, 4730-00-278-3203, 2590-01-556-6811. Verify interchangeability with system specifications before substitution.

What are the specifications of 543-3798-002?

Key specifications for 543-3798-002: Face Nominal Width: 0.125 INCHES IN; Body Style: PLAIN, SOLID; Bore Style: PLAIN BOTH ENDS; Clamping Surface Nominal Length: 0.125 INCHES FIRST END IN. 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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