PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15039BGear,helical

Brinkley Technology Group Llc Dba Hercules Manufacturing · NSN 3020-00-517-1120 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-517-1120 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-517-1120. Primary manufacturer part number: 15039B.
Features
  • Gear,helical — FSC 3020
  • Attachment Method: MOUNTING HOLE
  • Body Style: PLAIN, SOLID
  • Mounting Hole Thread Quantity Per Inch: 16 AXIALLY THROUGH BODY FIRST END
  • Mounting Hole Type and Quantity: 2 THREADED AXIALLY THROUGH BODY FIRST END
  • Style Designator: HUBLESS
  • Teeth Type: SINGLE HELIX
  • Bore Nominal Diameter: 1.929 INCHES BOTH ENDS 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 3020-00-517-1120, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 23 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-517-1120
Primary Part Number15039B
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerBrinkley Technology Group Llc Dba Hercules Manufacturing
StatusCANCELLED
Attachment MethodMOUNTING HOLE
Body StylePLAIN, SOLID
Mounting Hole Thread Quantity Per Inch16 AXIALLY THROUGH BODY FIRST END
Mounting Hole Type and Quantity2 THREADED AXIALLY THROUGH BODY FIRST END
Style DesignatorHUBLESS
Teeth TypeSINGLE HELIX
Bore Nominal Diameter1.929 INCHES BOTH ENDS IN
Bolt Hole Circle Nominal Diameter2.625 INCHES AXIALLY THROUGH BODY FIRST END IN
Nominal Distance From Bore Center to Keyway Bottom1.094 INCHES BOTH ENDS IN
Keyway Nominal Width0.251 INCHES BOTH ENDS IN
Bore StyleW/ KEYWAY BOTH ENDS
Pressure Angle14.5000 DEGREES
Mounting Hole Nominal Thread Size0.375 INCHES AXIALLY THROUGH BODY FIRST END IN
Pitch Diameter3.5000 INCHES NOMINAL IN
Mounting Hole Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) AXIALLY THROUGH BODY FIRST END
MaterialSTEEL OVERALL
Face Nominal Width1.498 INCHES IN
Nominal Outside Diameter3.698 INCHES IN
Tooth DirectionLEFT
Tooth FormSTANDARD
Helix Angle39.5167 DEGREES
Teeth Quantity27
Material Document and ClassificationQQ-S-633 FS 1035 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5331-00-006-479315039 INTERCHANGEABLE
O-Ring
Eaton Corporation Div Eaton Fluid Power
5133-00-189-9284 INTERCHANGEABLE
Drill,twist
5330-00-501-614315039 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
3040-00-640-4881AK5148-2 INTERCHANGEABLE
Collar,shaft
Rohde & Schwarz Usa, Inc.
5310-00-834-5523F011487 INTERCHANGEABLE
Nut,plain,hexagon
Tld Wollard Llc
5998-00-980-1072 INTERCHANGEABLE
Circuit Card Assembly
4710-01-184-71417J5533 INTERCHANGEABLE
Tube Assembly,metal
Caterpillar Inc Div Caterpillar Defense
4130-01-254-3228 INTERCHANGEABLE
Filter Element,air Conditioning
1005-01-260-2648 INTERCHANGEABLE
Dial,windage
5950-01-268-18748912017 INTERCHANGEABLE
Transformer,power
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
Cross-Reference Index
Part NumberManufacturer
15039D Hercules Engine Co Inc (USA)
15039B PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
1B7113 Napco International Llc Dba Napco International Inc (USA)
15039 PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
31251F Diamond Reo Truck Co (USA)
96046 White Motor Corp (USA)
2UU023 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
15039B Hercules Engine Co Inc (USA)
15039D PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
15039 Hercules Engine Co Inc (USA)
8393270 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5331-00-006-4793INTERCHANGEABLE
O-RING
15039
5133-00-189-9284INTERCHANGEABLE
DRILL,TWIST
5330-00-501-6143INTERCHANGEABLE
SEAL,PLAIN ENCASED
15039
3040-00-640-4881INTERCHANGEABLE
COLLAR,SHAFT
AK5148-2
5310-00-834-5523INTERCHANGEABLE
NUT,PLAIN,HEXAGON
F011487
5998-00-980-1072INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4710-01-184-7141INTERCHANGEABLE
TUBE ASSEMBLY,METAL
7J5533
4130-01-254-3228INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
1005-01-260-2648INTERCHANGEABLE
DIAL,WINDAGE
5950-01-268-1874INTERCHANGEABLE
TRANSFORMER,POWER
8912017
5955-01-270-9745INTERCHANGEABLE
OSCILLATOR,CRYSTAL CONTROLLED
15039
5999-01-437-0725INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
15039

Frequently Asked Questions

What is NSN 3020-00-517-1120?

NSN 3020-00-517-1120 is a Gear,helical, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-517-1120?

NSN 3020-00-517-1120 has 11 cross-referenced part numbers: 15039D (Hercules Engine Co Inc), 15039B (Brinkley Technology Group Llc Dba Hercules Manufacturing), 1B7113 (Napco International Llc Dba Napco International Inc), 15039 (Brinkley Technology Group Llc Dba Hercules Manufacturing), 31251F (Diamond Reo Truck Co) and 6 more.

What NSN replaces 3020-00-517-1120?

There are 12 known substitutes for 3020-00-517-1120: 5331-00-006-4793, 5133-00-189-9284, 5330-00-501-6143 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15039B?

Key specifications for 15039B: Attachment Method: MOUNTING HOLE; Body Style: PLAIN, SOLID; Mounting Hole Thread Quantity Per Inch: 16 AXIALLY THROUGH BODY FIRST END; Mounting Hole Type and Quantity: 2 THREADED AXIALLY THROUGH BODY FIRST END. 23 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-517-1120 still in active supply?

NSN 3020-00-517-1120 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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