PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

543-0704-002Gear,spur

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 3020-00-671-1187 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-671-1187 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-671-1187. Primary manufacturer part number: 543-0704-002.
Features
  • Gear,spur — FSC 3020
  • Mounting Hole Nominal Thread Size: 0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
  • Bore Style: PLAIN BOTH ENDS
  • Face Nominal Width: 0.093 INCHES IN
  • Style Designator: PROTRUDING HUB
  • Teeth Quantity: 60
  • Body Style: PLAIN, SOLID
  • Mounting Hole Type and Quantity: 2 THREADED TRANSVERSELY THROUGH HUB FIRST END
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-671-1187, 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. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 19 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-671-1187
Primary Part Number543-0704-002
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Mounting Hole Nominal Thread Size0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END IN
Bore StylePLAIN BOTH ENDS
Face Nominal Width0.093 INCHES IN
Style DesignatorPROTRUDING HUB
Teeth Quantity60
Body StylePLAIN, SOLID
Mounting Hole Type and Quantity2 THREADED TRANSVERSELY THROUGH HUB FIRST END
Pitch Diameter1.2500 INCHES NOMINAL IN
Attachment MethodMOUNTING HOLE
Nominal Outside Diameter1.291 INCHES IN
Bore Nominal Diameter0.250 INCHES BOTH ENDS IN
Pressure Angle20.0000 DEGREES
Nominal Overall Length0.312 INCHES IN
Hub Nominal Diameter0.500 INCHES FIRST END IN
Mounting Hole Thread Quantity Per Inch40 TRANSVERSELY THROUGH HUB FIRST END
Nominal Distance Between Body Face and Protruding Hub End0.219 INCHES FIRST END IN
Tooth FormSTANDARD
Hub Style DesignatorPLAIN FIRST END
Mounting Hole Thread Series DesignatorUNF TRANSVERSELY THROUGH HUB FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3120-00-567-3465127730 INTERCHANGEABLE
Bearing Half,sleeve
Cummins Inc.
5998-01-222-7382 INTERCHANGEABLE
Printed Wiring Board
Cross-Reference Index
Part NumberManufacturer
543-0704-002 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
127730 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
3120-00-567-3465INTERCHANGEABLE
BEARING HALF,SLEEVE
127730
5998-01-222-7382INTERCHANGEABLE
PRINTED WIRING BOARD

Frequently Asked Questions

What is NSN 3020-00-671-1187?

NSN 3020-00-671-1187 is a Gear,spur, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-671-1187?

NSN 3020-00-671-1187 has 2 cross-referenced part numbers: 543-0704-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 127730 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 3020-00-671-1187?

There are 2 known substitutes for 3020-00-671-1187: 3120-00-567-3465, 5998-01-222-7382. Verify interchangeability with system specifications before substitution.

What are the specifications of 543-0704-002?

Key specifications for 543-0704-002: Mounting Hole Nominal Thread Size: 0.138 INCHES TRANSVERSELY THROUGH HUB FIRST END IN; Bore Style: PLAIN BOTH ENDS; Face Nominal Width: 0.093 INCHES IN; Style Designator: PROTRUDING HUB. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com