PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8429-1Gear,spur

Cummins Inc. · NSN 3020-00-174-5564 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-174-5564 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-174-5564. Primary manufacturer part number: 8429-1.
Features
  • Gear,spur — FSC 3020
  • Pressure Angle: 14.5000 DEGREES
  • Keyway Nominal Width: 0.124 INCHES BOTH ENDS IN
  • Pitch Diameter: 1.4000 INCHES NOMINAL IN
  • Bore Style: W/ KEYWAY BOTH ENDS
  • Tooth Form: STANDARD
  • Face Nominal Width: 0.999 INCHES IN
  • Nominal Outside Diameter: 1.599 INCHES IN
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 4615 Overall construction
General Description

The Gear,spur, cataloged under National Stock Number 3020-00-174-5564, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-174-5564
Primary Part Number8429-1
Item NameGear,spur
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Pressure Angle14.5000 DEGREES
Keyway Nominal Width0.124 INCHES BOTH ENDS IN
Pitch Diameter1.4000 INCHES NOMINAL IN
Bore StyleW/ KEYWAY BOTH ENDS
Tooth FormSTANDARD
Face Nominal Width0.999 INCHES IN
Nominal Outside Diameter1.599 INCHES IN
MaterialSTEEL COMP 4615 OVERALL
Body StylePLAIN, SOLID
Material Document and Classification66,AISI/SAE 4615 FED STD SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorHUBLESS
Nominal Distance From Bore Center to Keyway Bottom0.343 INCHES BOTH ENDS IN
Bore Nominal Diameter0.623 INCHES BOTH ENDS IN
Teeth Quantity14
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3110-00-555-5423 INTERCHANGEABLE
Bearing,ball,annular
4320-00-982-9369 INTERCHANGEABLE
Parts Kit,rotary Pump
2925-01-019-167284291 INTERCHANGEABLE
Parts Kit,overhaul
Unison Industries, Llc Dba Unison Industries Inc
5360-01-330-207384291 INTERCHANGEABLE
Spring,helical,compression
Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Cross-Reference Index
Part NumberManufacturer
K8429-1 Cummins Inc. (USA)
8429-1 PRIMARY Cummins Inc. (USA)
Related Parts
3110-00-555-5423INTERCHANGEABLE
BEARING,BALL,ANNULAR
4320-00-982-9369INTERCHANGEABLE
PARTS KIT,ROTARY PUMP
2925-01-019-1672INTERCHANGEABLE
PARTS KIT,OVERHAUL
84291
5360-01-330-2073INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
84291

Frequently Asked Questions

What is NSN 3020-00-174-5564?

NSN 3020-00-174-5564 is a Gear,spur, manufactured by Cummins Inc., classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-174-5564?

NSN 3020-00-174-5564 has 2 cross-referenced part numbers: K8429-1 (Cummins Inc.), 8429-1 (Cummins Inc.).

What NSN replaces 3020-00-174-5564?

There are 4 known substitutes for 3020-00-174-5564: 3110-00-555-5423, 4320-00-982-9369, 2925-01-019-1672 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8429-1?

Key specifications for 8429-1: Pressure Angle: 14.5000 DEGREES; Keyway Nominal Width: 0.124 INCHES BOTH ENDS IN; Pitch Diameter: 1.4000 INCHES NOMINAL IN; Bore Style: W/ KEYWAY BOTH ENDS. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-174-5564 still in active supply?

NSN 3020-00-174-5564 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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