PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

302519900Gear,helical

Cummins Inc. · NSN 3020-00-856-3775 · FSC 3020 · No Item Name Available
Verified by PartsTable
NSN 3020-00-856-3775 — this item is cataloged by the U.S. Government under National Stock Number 3020-00-856-3775. Primary manufacturer part number: 302519900.
Features
  • Gear,helical — FSC 3020
  • Tooth Form: STANDARD
  • Pressure Angle: 20.0000 DEGREES
  • Teeth Quantity: 27
  • Pitch Diameter: 3.6562 INCHES NOMINAL IN
  • Tooth Direction: LEFT
  • Material: STEEL OVERALL
  • Teeth Type: SINGLE HELIX
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 3020-00-856-3775, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3020-00-856-3775
Primary Part Number302519900
Item NameGear,helical
FSC / FSG3020 / 30 — No Item Name Available
ManufacturerCummins Inc.
StatusACTIVE
Tooth FormSTANDARD
Pressure Angle20.0000 DEGREES
Teeth Quantity27
Pitch Diameter3.6562 INCHES NOMINAL IN
Tooth DirectionLEFT
MaterialSTEEL OVERALL
Teeth TypeSINGLE HELIX
Bolt Hole Circle Nominal Diameter2.310 INCHES AXIALLY THROUGH BODY FIRST END IN
Body StylePLAIN, SOLID
Attachment MethodMOUNTING HOLE
Style DesignatorHUBLESS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-249-2032 INTERCHANGEABLE
Tee,pipe
3020-00-820-7915302519800 INTERCHANGEABLE
Gear,helical
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
302519900 Cummins Inc. (USA)
133855 La Gary Co (USA)
3025199 Cummins Inc. (USA)
125988 La Gary Co (USA)
133855 Cummins Inc. (USA)
125988 Cummins Inc. (USA)
Related Parts
4730-00-249-2032INTERCHANGEABLE
TEE,PIPE
3020-00-820-7915INTERCHANGEABLE
GEAR,HELICAL
302519800

Frequently Asked Questions

What is NSN 3020-00-856-3775?

NSN 3020-00-856-3775 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 3020-00-856-3775?

NSN 3020-00-856-3775 has 6 cross-referenced part numbers: 302519900 (Cummins Inc.), 133855 (La Gary Co), 3025199 (Cummins Inc.), 125988 (La Gary Co), 133855 (Cummins Inc.) and 1 more.

What NSN replaces 3020-00-856-3775?

There are 2 known substitutes for 3020-00-856-3775: 4730-00-249-2032, 3020-00-820-7915. Verify interchangeability with system specifications before substitution.

What are the specifications of 302519900?

Key specifications for 302519900: Tooth Form: STANDARD; Pressure Angle: 20.0000 DEGREES; Teeth Quantity: 27; Pitch Diameter: 3.6562 INCHES NOMINAL IN. 11 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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