PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3514Gear,helical

Cummins Inc. · NSN 3020-00-779-6336 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-779-6336 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-779-6336. Primary manufacturer part number: 3514.
Features
  • Gear,helical — FSC 3020
  • Hub Style Designator: PLAIN BOTH ENDS
  • Mounting Hole Type and Quantity: 2 PLAIN AXIALLY THROUGH BODY FIRST END
  • Counterbore Nominal Depth: 0.2500 INCHES FIRST END IN
  • Nominal Outside Diameter: 10.341 INCHES IN
  • Tooth Form: STANDARD
  • Teeth Quantity: 78
  • Mounting Hole Nominal Diameter: 0.374 INCHES AXIALLY THROUGH BODY FIRST END IN
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 3020-00-779-6336, 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 26 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-779-6336
Primary Part Number3514
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Hub Style DesignatorPLAIN BOTH ENDS
Mounting Hole Type and Quantity2 PLAIN AXIALLY THROUGH BODY FIRST END
Counterbore Nominal Depth0.2500 INCHES FIRST END IN
Nominal Outside Diameter10.341 INCHES IN
Tooth FormSTANDARD
Teeth Quantity78
Mounting Hole Nominal Diameter0.374 INCHES AXIALLY THROUGH BODY FIRST END IN
Bore Nominal Diameter2.7500 INCHES BOTH ENDS IN
MaterialSTEEL OVERALL
Hub Nominal Diameter4.500 INCHES SECOND END IN
Pitch Diameter10.0940 INCHES NOMINAL IN
Attachment MethodMOUNTING HOLE
Tooth DirectionLEFT
Counterbore Nominal Diameter4.375 INCHES FIRST END IN
Bolt Hole Circle Nominal Diameter3.500 INCHES AXIALLY THROUGH BODY FIRST END IN
Face Nominal Width1.500 INCHES IN
Teeth TypeSINGLE HELIX
Helix Angle15.0000 DEGREES
Nominal Distance Between Body Face and Recessed Hub End0.218 INCHES FIRST END IN
Hub Nominal Diameter5.000 INCHES FIRST END IN
Pressure Angle20.0000 DEGREES
Style DesignatorRECESSED HUBS
Nominal Distance Between Body Face and Recessed Hub End0.593 INCHES SECOND END IN
Bore StylePLAIN BOTH ENDS
Mounting Hole Nominal Diameter0.437 INCHES AXIALLY THROUGH BODY SECOND END IN
Body StyleWEBBED, OFFSET, SOLID
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6740-00-431-9655 INTERCHANGEABLE
Hanger,photographic Film
4820-00-885-3077 INTERCHANGEABLE
Diaphragm,valve,flat
3040-00-936-2168 INTERCHANGEABLE
Cylinder Assembly,actuating,line
5975-00-959-16805334 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
6505-01-117-9832 INTERCHANGEABLE
Isoflurane
5985-01-158-4455AR3514 INTERCHANGEABLE
Attenuator,variable
Antenna & Radome Research Associates Corp Dba Arra Inc Div Arra Inc
2510-01-161-6584MA132-21012 INTERCHANGEABLE
Guard,lock,fifth Wheel Assembly
Am General Llc
4810-01-221-5526A3S1/4 INTERCHANGEABLE
Valve,solenoid
Parker-Hannifin Corp Div Sporlan Division
4730-01-267-0097 INTERCHANGEABLE
Strainer,sediment
4820-01-367-15663514 INTERCHANGEABLE
Valve,regulating,fluid Pressure
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
3514 PRIMARY Cummins Inc. (USA)
A3514 La Gary Co (USA)
Related Parts
6740-00-431-9655INTERCHANGEABLE
HANGER,PHOTOGRAPHIC FILM
4820-00-885-3077INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
3040-00-936-2168INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
5975-00-959-1680INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5334
6505-01-117-9832INTERCHANGEABLE
ISOFLURANE
5985-01-158-4455INTERCHANGEABLE
ATTENUATOR,VARIABLE
AR3514
2510-01-161-6584INTERCHANGEABLE
GUARD,LOCK,FIFTH WHEEL ASSEMBLY
MA132-21012
4810-01-221-5526INTERCHANGEABLE
VALVE,SOLENOID
A3S1/4
4730-01-267-0097INTERCHANGEABLE
STRAINER,SEDIMENT
4820-01-367-1566INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
3514
5120-01-430-7670INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5998-01-449-1325INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
3514

Frequently Asked Questions

What is NSN 3020-00-779-6336?

NSN 3020-00-779-6336 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 3020-00-779-6336?

NSN 3020-00-779-6336 has 2 cross-referenced part numbers: 3514 (Cummins Inc.), A3514 (La Gary Co).

What NSN replaces 3020-00-779-6336?

There are 12 known substitutes for 3020-00-779-6336: 6740-00-431-9655, 4820-00-885-3077, 3040-00-936-2168 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3514?

Key specifications for 3514: Hub Style Designator: PLAIN BOTH ENDS; Mounting Hole Type and Quantity: 2 PLAIN AXIALLY THROUGH BODY FIRST END; Counterbore Nominal Depth: 0.2500 INCHES FIRST END IN; Nominal Outside Diameter: 10.341 INCHES IN. 27 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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