PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

850596Gear,helical

Dana Off Highway Products, Llc · NSN 3020-00-249-9937 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-249-9937 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-249-9937. Primary manufacturer part number: 850596.
Features
  • Gear,helical — FSC 3020
  • Body Style: PLAIN, SOLID
  • Hardness Rating: 21.0 ROCKWELL C NOMINAL OVERALL
  • Pitch Diameter: 1.3940 INCHES MINIMUM AND 1.3960 INCHES MAXIMUM IN
  • Bore Style: W/ KEYWAY BOTH ENDS
  • Tooth Direction: LEFT
  • Style Designator: HUBLESS
  • Pressure Angle: 14.5000 DEGREES
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
  • Applications requiring Steel Comp 1137 Overall construction
General Description

The Gear,helical, cataloged under National Stock Number 3020-00-249-9937, is classified within Federal Supply Class 3020 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Dana Off Highway Products, Llc. Government technical data includes 18 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3020-00-249-9937
Primary Part Number850596
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerDana Off Highway Products, Llc
StatusCANCELLED
Body StylePLAIN, SOLID
Hardness Rating21.0 ROCKWELL C NOMINAL OVERALL
Pitch Diameter1.3940 INCHES MINIMUM AND 1.3960 INCHES MAXIMUM IN
Bore StyleW/ KEYWAY BOTH ENDS
Tooth DirectionLEFT
Style DesignatorHUBLESS
Pressure Angle14.5000 DEGREES
Bore Nominal Diameter0.4985 INCHES BOTH ENDS IN
Teeth Quantity13
Tooth FormSTANDARD
Teeth TypeSINGLE HELIX
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE AND AISI/SAE 1137 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Distance From Bore Center to Keyway Bottom0.3302 INCHES BOTH ENDS IN
Helix Angle21.2666 DEGREES
Nominal Outside Diameter1.6005 INCHES IN
Face Nominal Width0.7485 INCHES IN
MaterialSTEEL COMP 1137 OVERALL
Keyway Nominal Width0.1276 INCHES BOTH ENDS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5307-00-217-96475715 INTERCHANGEABLE
Stud,plain
Dayton-Walther Corp
5945-00-322-4109SMB97514 INTERCHANGEABLE
Relay,electromagnetic
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5975-00-473-7858 INTERCHANGEABLE
Tee,raceway
3120-00-736-10265715 INTERCHANGEABLE
Bushing,sleeve
Goodrich Aerospace Canada Ltd
4730-00-737-785510A2960 INTERCHANGEABLE
Tee,pipe to Tube
Napco International Llc Dba Napco International Inc
4810-01-152-5443901001-5 INTERCHANGEABLE
Valve,gate
Tri-Tec Manufacturing Llc
4940-01-468-7465 INTERCHANGEABLE
Degreaser
Cross-Reference Index
Part NumberManufacturer
850596 Dana Off Highway Products, Llc (USA)
DC2588 Hyster-Yale Group, Inc. (USA)
5715 Mitsubishi Caterpillar Forklift America, Inc (USA)
Y400H209REVA Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
07-850596 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
09-5715 Tvh Parts Co. (USA)
Y400H209 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
850596 Clark Equipment Co (USA)
09-5715 Lift Parts Mfg Co Inc Div of Echlin Mfg Co the (USA)
07-850596 Tvh Parts Co. (USA)
Related Parts
5307-00-217-9647INTERCHANGEABLE
STUD,PLAIN
5715
5945-00-322-4109INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SMB97514
5975-00-473-7858INTERCHANGEABLE
TEE,RACEWAY
3120-00-736-1026INTERCHANGEABLE
BUSHING,SLEEVE
5715
4730-00-737-7855INTERCHANGEABLE
TEE,PIPE TO TUBE
10A2960
4810-01-152-5443INTERCHANGEABLE
VALVE,GATE
901001-5
4940-01-468-7465INTERCHANGEABLE
DEGREASER

Frequently Asked Questions

What is NSN 3020-00-249-9937?

NSN 3020-00-249-9937 is a Gear,helical, manufactured by Dana Off Highway Products, Llc, classified under FSC 3020 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3020-00-249-9937?

NSN 3020-00-249-9937 has 10 cross-referenced part numbers: 850596 (Dana Off Highway Products, Llc), DC2588 (Hyster-Yale Group, Inc.), 5715 (Mitsubishi Caterpillar Forklift America, Inc), Y400H209REVA (Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc), 07-850596 (Lift Parts Mfg Co Inc Div of Echlin Mfg Co the) and 5 more.

What NSN replaces 3020-00-249-9937?

There are 7 known substitutes for 3020-00-249-9937: 5307-00-217-9647, 5945-00-322-4109, 5975-00-473-7858 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 850596?

Key specifications for 850596: Body Style: PLAIN, SOLID; Hardness Rating: 21.0 ROCKWELL C NOMINAL OVERALL; Pitch Diameter: 1.3940 INCHES MINIMUM AND 1.3960 INCHES MAXIMUM IN; Bore Style: W/ KEYWAY BOTH ENDS. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3020-00-249-9937 still in active supply?

NSN 3020-00-249-9937 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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