PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202170Gear,helical

Cummins Inc. · NSN 3020-00-233-7919 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-233-7919 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-233-7919. Primary manufacturer part number: 202170.
Features
  • Gear,helical — FSC 3020
  • Pitch Diameter: 10.1560 INCHES NOMINAL IN
  • Body Style: WEBBED, OFFSET, SOLID
  • Hub Nominal Diameter: 2.500 INCHES SECOND END IN
  • Pressure Angle: 20.0000 DEGREES
  • Nominal Distance Between Body Face and Protruding Hub End: 0.781 INCHES FIRST END IN
  • Teeth Type: SINGLE HELIX
  • Style Designator: ONE PROTRUDING HUB, ONE RECESSED HUB
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-233-7919, 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 21 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
NSN3020-00-233-7919
Primary Part Number202170
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Pitch Diameter10.1560 INCHES NOMINAL IN
Body StyleWEBBED, OFFSET, SOLID
Hub Nominal Diameter2.500 INCHES SECOND END IN
Pressure Angle20.0000 DEGREES
Nominal Distance Between Body Face and Protruding Hub End0.781 INCHES FIRST END IN
Teeth TypeSINGLE HELIX
Style DesignatorONE PROTRUDING HUB, ONE RECESSED HUB
Bore StyleW/ KEYWAY BOTH ENDS
Tooth DirectionRIGHT
Face Nominal Width1.500 INCHES IN
Keyway Nominal Width0.312 INCHES FIRST END IN
Nominal Distance From Bore Center to Keyway Bottom0.562 INCHES FIRST END IN
MaterialSTEEL OVERALL
Bore Nominal Diameter0.812 INCHES FIRST END IN
Teeth Quantity78
Tooth FormSTANDARD
Hub Style DesignatorPLAIN BOTH ENDS
Nominal Outside Diameter10.3440 INCHES IN
Hub Nominal Diameter3.000 INCHES FIRST END IN
Nominal Distance Between Body Face and Recessed Hub End0.625 INCHES FIRST END IN
Helix Angle15.0000 DEGREES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6520-00-083-6403202170 INTERCHANGEABLE
Explorer,dental
Dentalez, Inc. Dba Star Dental
1020-00-143-2637202170PC3 INTERCHANGEABLE
Pin,alignment
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-00-229-3200R130-1 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Johnson Controls, Inc Div Building Efficiency
Cross-Reference Index
Part NumberManufacturer
202170 PRIMARY Cummins Inc. (USA)
Related Parts
6520-00-083-6403INTERCHANGEABLE
EXPLORER,DENTAL
202170
1020-00-143-2637INTERCHANGEABLE
PIN,ALIGNMENT
202170PC3
4820-00-229-3200INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
R130-1

Frequently Asked Questions

What is NSN 3020-00-233-7919?

NSN 3020-00-233-7919 is a Gear,helical, manufactured by Cummins Inc., classified under FSC 3020 (No Item Name Available). Status: active.

What are the part numbers for NSN 3020-00-233-7919?

NSN 3020-00-233-7919 has 1 cross-referenced part number: 202170 (Cummins Inc.).

What NSN replaces 3020-00-233-7919?

There are 3 known substitutes for 3020-00-233-7919: 6520-00-083-6403, 1020-00-143-2637, 4820-00-229-3200. Verify interchangeability with system specifications before substitution.

What are the specifications of 202170?

Key specifications for 202170: Pitch Diameter: 10.1560 INCHES NOMINAL IN; Body Style: WEBBED, OFFSET, SOLID; Hub Nominal Diameter: 2.500 INCHES SECOND END IN; Pressure Angle: 20.0000 DEGREES. 21 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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